Epson SCE8720C Series Hardware Manual
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Epson SCE8720C Series Hardware Manual

Epson SCE8720C Series Hardware Manual

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MF1286-02
CARD-PCI/GX
Hardware Manual
SEIKO EPSON CORPORATION

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Summary of Contents for Epson SCE8720C Series

  • Page 1 MF1286-02 CARD-PCI/GX Hardware Manual SEIKO EPSON CORPORATION...
  • Page 2 Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level reliability, such as, medical products.

  • Page 3: Table Of Contents

    3.3.13 FDD ........................37 4. 4. 4. 4. Detailed description of interfaces Detailed description of interfaces Detailed description of interfaces Detailed description of interfaces..................................................................38 CRT, LCD........................38 Hard disk ........................40 EPSON Rev.A...
  • Page 4 6.3.10 USB ........................57 6.3.11 Power management signal ..................57 6.3.12 AC97........................58 6.3.13 Other signals......................59 Current consumption....................60 6.4.1 Maximum current value ..................60 6.4.2 Typical current value 1 ..................60 6.4.3 Typical current value 2 ..................61 EPSON Rev.A...
  • Page 5 Appendix B. B. B. B. Timing examples of power management signals Timing examples of power management signals..................79 Appendix Appendix Timing examples of power management signals Timing examples of power management signals ..................EPSON Rev.A...

  • Page 6: Overview

    Overview Overview Overview SCE8720Cxx (CARD/PCI/GX) is the first product in SEIKO EPSON’s CARD-PCI series equipped with the PCI bus. With the PCI bus, ability of enhancement, which enables various PCI devices to be connected, is realized. By utilizing the Geode 200 MHz low voltage product, which comprises CPU core, and the companion chip manufactured by National Semiconductor, low power consumption, low cost and high quality display (CRT1280 ×...

  • Page 7: System Overview

    (*1: LIMITED ISA = ISA with limited capability) Clocks SDRAM 32/64MB Geode GXLV (CPU&North) Main 200MHz 2.2V Memory& V-RAM PCI expansion AC97 CS5530 (South&display) USB*2CH LIMITED ISA expansion Flash BIOS PC97317(Super IO) KB/MOUSE 256KB Serial*2CH Parallel Figure1.1 Block diagram of SCE8720Cxx EPSON Rev.A...

  • Page 8: Basic Specification

    Mouse 1PS/2-compatible 2-port, USB Revision 1.0 compliant Speaker PC beep AC97 Version 2.0 Super I/O PC97317 (Manufactured by National Semiconductor) MC146818A-compatible, built in Super I/O. Clock buffer MK1491-06 (Manufactured by ICS) Outside dimensions 101.6±1.0×63.5±0.3×16.0±1.0 (mm) Weight Approx. 82g EPSON Rev.A...
  • Page 9 (Power of 5V is always supplied regardless of the ON/OFF of the power supply.) Current consumption Typ. 0.35 mA Backup power (V ) 2.7 to 3.6V (voltage supplied by battery) CCBAK 1.2 µA Current consumption Typ. (When holding the C-MOS memory contents by the battery) EPSON Rev.A...

  • Page 10: Bios

    1.3 BIOS SCE8720C has adopted AWARD BIOS manufactured by Phoenix. It has the power management and plug-and-play functions. With the BIOS setup menu, many configuration parameters can be set. The Video BIOS is also stored in the same ROM. EPSON Rev.A...

  • Page 11: Memory Map

    *1: Memory size can be 32MB or 64MB, depending on the model. *2: With some types of Video, C0000h to CBFFFh can be occupied as VIDEO BIOS. α : Area for the video memory: Max. 4MB Figure 1.3 Memory map EPSON Rev.A...

  • Page 12: I/O Map

    20h RO Interrupt Service Resister 20h RO Interrupt Request Resister 21h WO Initialization Control Word ICW2 21h WO Initialization Control Word ICW3 21h WO Initialization Control Word ICW4 21h RW Operation Control Word OCW1 21h RW Interrupt Mask Resister EPSON Rev.A...
  • Page 13 86h RW Reserved 87h RW Channel 0 88h RW Reserved 89h RW Channel 6 8Ah RW Channel 7 8Bh RW Channel 5 8Ch RW Reserved 8Dh RW Reserved 8Eh RW Reserved 8Fh RW Refresh 92h RW Port 92 EPSON Rev.A...
  • Page 14 Mask Register D6h WO Mode Register D8h WO Clear Byte Pointer DAh RO Master Clear DAh WO Temporary Register DCh WO Clear Mask Register DEh WO Write all Mask Register 0F0h-0FFh F0h,F1h Mathematical Co-processor Resister 100h-1EFh Usable with ISA EPSON Rev.A...
  • Page 15 2F9h RW Divider Latch Most Significant Byte 2F9h RW Interrupt Enable Register 2FAh RO Interrupt Register 2FBh RW Line Controller Register 2FCh RW MODEM Control Register 2FDh RO Status Register 2FEh RO MODEM Status Register 2FFh RW Scratch Register EPSON Rev.A...
  • Page 16 3CEh RW Graphics Controller Index 3CFh RW Graphics Controller Data 3D0h-3DFh 3D4h RW CRT Controller Index 3D5h RW CRT Controller Data VGA Controller 3DAh W Feature Control (color) 3DAh R Input Status Register 3E0h-3EFh Usable with ISA bus EPSON Rev.A...
  • Page 17 Divider Latch Most Significant Byte 3F9h RW Interrupt Enable Register 3FAh RO Interrupt ID Register 3FBh RW Line Control Register 3FCh RW MODEM Control Register 3FDh RO Status Register 3FEh RO MODEM Status Register 3FFh RW Scratch Register EPSON Rev.A...

  • Page 18: Dma Controller

    Table 1.4 DMA page register Page register I/O address DMA channel 0 0087h DMA channel 1 0083h DMA channel 2 0081h DMA channel 3 0082h DMA channel 5 008Bh DMA channel 6 0089h DMA channel 7 008Ah REFRESH 008Fh EPSON Rev.A...

  • Page 19: System Interrupts

    IRQ3, 4, 10 or 11, and parallel port interrupts are selected from IRQ5 or 7. Interrupts not used by the built-in serial or parallel port can then be used with ISA bus. Also, when not using HDD, IRQ14 can be used with ISA bus. EPSON Rev.A...

  • Page 20: Timer Counter

    Fixed to ON Refresh request CLK IN 1 1.19MHz CLK OUT 1 Refresh request Channel 2 GATE 2 Controlled by I/O port 61h. Speaker interface CLK IN 2 1.19MHz CLK OUT 2 Used to drive the speaker interface. EPSON Rev.A...

  • Page 21: Real Time Clock And C-Mos Ram

    CMOS RAM. When V is supplied even while the system power is OFF, power from the V CCSTB CCSTB used for backup. When both the system power and V is OFF, battery power from the CCSTB is used. CCBAK EPSON Rev.A...

  • Page 22: Mechanical Specifications

    3-M2 screw (uniqro) Figure 2.1 Dimensional Diagram 2.2 Installation method CARD-PCI installation connector 280-pin connector product name 1-353906-0 Manufactured by AMP 20-pin connector product name52030-2010 (ZIF, DIP) Manufactured by Molex For more information about installation, refer to the application note. EPSON Rev.A...

  • Page 23: Interface Specifications Interface Specifications

    Most of the signals and powers of SCE8720C are connected via this connector. It consists of 2 140-pin connectors. * 20-pin connector Connector for the flexible flat cable. Signals for FDD and ISA bus interrupt signals are connected to this connector. When not using such signals, this connector is unconnected. EPSON Rev.A...

  • Page 24: 280-Pin Connector Pin Configuration

    212 C O M 1 T X D C O M 1 70 G N D P W R 71 G N D P W R 210 G N D P W R 211 G N D P W R EPSON Rev.A...
  • Page 25 CARD-PCI/GX Hardware Manual 3.1.2 20-pin connector pin configuration Table 3.2 20-pin connector pin configuration Pin No. Signal name Block DSKCHG# INDEX# TRK0# RDATA# DENSEL WGATE# HDSEL# STEP# DIR# WDATA# DR0# MTR0# IRQ15 IRQ 7 IRQ4 IRQ3 EPSON Rev.A...

  • Page 26: Signal Characteristics

    Indicates drive ability of the output buffer sink current and source current. • Reference PU/PD Reference value of required pull-up or pull-down resistance. (When using all the IO port.) • pull-up /down when not used Indicates whether or not pull-up or pull-down is required when not using signals. EPSON Rev.A...
  • Page 27 Pulled-up to V CCSTB PU/PD XPU(3.3V) Pulled-up to 3.3V by x Ω resistance. Even when not using the signal in the system, some kind of pull- pull-up up is necessary. NC is not available. /down when not used EPSON Rev.A...
  • Page 28 3.3V, 20kPU -8mA 4.7kPU (3.3V) (5V) SA[19:16],SBHE# 3.3V 20kPU -8mA (3.3V) MEMR#,MEMW#,IOR#, 3.3V, 4. 7kPU -8mA IOW# (5V) SALATCH 3.3V -4mA 3.3V -8mA ROMCS# 3.3V -4mA MEMCS16#,IOCS16# 3.3V, 1kPU (5V) IOCHRDY 3.3V, 1kPU (5V) IRQ[5,9,10,11] 3.3V, 10kPU (5V) EPSON Rev.A...
  • Page 29 No. of Block Vol- Reference When not used down 280-pin connector pins tage PU/PD PU/PD COM1RXD,COM1CTS#, COM1,2 ---(*6) COM1DSR#,COM1CD#, COM2RXD,COM2CTS#, COM2DSR#,COM2CD#, COM1RI#,COM2RI# COM1TXD, COM2TXD, COM1,2 12mA -6mA (*6) COM2RTS# COM1RTS#, COM1DTR#, COM1,2 10kPU 12mA -6mA (*6) COM2DTR# (5V) EPSON Rev.A...
  • Page 30 4.7kPU (3.3V) POWERGOOD 3.3V (*1) PME0# 4.7kPU (5VSTB) (*5) PME1# 4.7kPU (5VSTB) (*5) PORT[4:3] GPIO Progr Progra -2mA - or PU -mmable (*2) able CPUFRQ MISC 3.3V 10kPU １ ROMDIS MISC 10kPD --- (*3) RESERVE MISC --- (*4) EPSON Rev.A...
  • Page 31 (so that other cards can also use the same main circuit). *6: For RS232C driver receiver on the evaluation board to be connected to the COM1 and COM2 interfaces, use one that operates at 5V, or that operates at 3.3V and is 5V- tolerant. EPSON Rev.A...

  • Page 32: Descriptions On Signal Functions

    Signal used when exclusively accessing the target. SERR# I/OD Signal indicating that a fatal error has occurred. PERR# S/T/S Parity error signal. RST# PCI reset signal. REQ[1:0]# Bus request signal. GNT[1:0]# Permission signal to use bus. PCLK[2:0] PCI clock INT[A,B,C,D]# PCI interrupt signal. EPSON Rev.A...

  • Page 33: Limited Isa Bus

    SD[15:8] or SD[7:0]. This gets active when the memory address area on the ISA bus, 000000H to FFFFFFH (all of the 16-MB area) is accessed. This command applies only if ROMCS#=H when connecting to the memory device on the ISA bus. EPSON Rev.A...
  • Page 34 ISA bus. When being used by the parallel interface inside SCE8720C, IRQ5 becomes output. When being not used, they become inputs and can be used on the ISA bus. EPSON Rev.A...

  • Page 35: Lcd

    6 bits for R, G and B each. FPDISPEN Display enable FPDOTCLK Dot clock FPDOTE Extended signal for flat panel. Even clock for LVDS is output. FPVEEON Enable signal for back light power supply. FPVDDON Enable signal for V power supply (logic system). EPSON Rev.A...

  • Page 36: Crt

    (6 pins in total) USB DP1, USBDM1 Plus and minus data of USB port 1. USB DP0, USBDM0 Plus and minus data of USB port 0. USBON Power supply control signal of USB (Power-ON) USBCUR# Over-current detection signal of USB. EPSON Rev.A...

  • Page 37: Serial Interfaces

    Alternatively, this signal can be used in SCE8720C as a wake-up signal from the suspend state. Serial data transmission COM1TXD Output pin for the asynchronous serial data. COM2TXD Serial data receive COM1RXD COM2RXD Input pin for the asynchronous serial data. EPSON Rev.A...

  • Page 38: Parallel Interfaces

    Line printer selected Active high LPTSLCT I/OD Status signal sent to SCE8720C by a peripheral device in order to confirm that SCE8720C has selected the device. Line printer data bus LPTD[7:0] A data bus between SCE8720C and the printer. EPSON Rev.A...
  • Page 39 LPTSTROBE# WRITE# LPTD[7:0] LPTD[7:0] LPTD[7:0] LPTD[7:0] LPTACK# LPTACK# LPTACK# LPTACK# LPTBUSY LPTBUSY LPTBUSY WAIT# LPTPE LPTPE LPTPE LPTPE LPTSLCT LPTSLCT LPTSLCT LPTSLCT LPTAFD# LPTAFD# LPTAFD# DSTRB# LPTERROR# LPTERROR# LPTERROR# LPTERROR# LPTINIT# LPTINIT# LPTINIT# LPTINIT# LPTSLCTIN# LPTSLCTIN# LPTSLCTIN# ASTRB# EPSON Rev.A...

  • Page 40: Keyboard/Mouse

    (6 pins in total) AC97SDIN0 Audio serial data input (from CODEC) AC97SDOUT Audio serial data output (to CODEC) AC97SYNC Serial bus synchronous signal AC97RESET# Reset signal for AC97. AC97BITCLK Audio bit clock input PCBEEP Legacy PC/AT speaker output EPSON Rev.A...

  • Page 41: Power Management

    Input signal. Set it to NC with SCE8720Cxx. ROMDIS Input signal. Disable signal of ROM inside SCE8720C. CPU accesses the external ROM when the signal is HIGH, and internal ROM when LOW. RESERVED RESERVED pin. Set it to NC. EPSON Rev.A...

  • Page 42: Power Supply

    Function description DSKCHG# Disk Change Write Protect INDEX# Index TRK0# Track 0 RDATA# Read Data DENSEL Density Select WGATE# Write Gate HDSEL# Head Select STEP# Step DIR# Direction WDATA# Write Data DR0# Drive Select 0 MTR0# Motor Select 0 EPSON Rev.A...

  • Page 43: Detailed Description Of Interfaces Detailed Description Of Interfaces

    18 bits 16BPP 9 bits 64K colors 12 bits R = 5 bits, G = 6 bits and B = 5 bits 18 bits In 640 × 480 and 800 × 600 modes, simultaneous display with CRT is available. EPSON Rev.A...
  • Page 44 Table 3.18 TFT display data assignment Signal name 18-bit TFT 12-bit TFT 9-bit TFT 640×480 1024×768 FPDATA17 Even pixel FPDATA16 FPDATA15 FPDATA14 pixel FPDATA13 FPDATA12 FPDATA11 Even pixel FPDATA10 FPDATA9 FPDATA8 pixel FPDATA7 FPDATA6 FPDATA5 Even pixel FPDATA4 FPDATA3 FPDATA2 pixel FPDATA1 FPDATA0 EPSON Rev.A...

  • Page 45: Hard Disk

    Each signal of IDE can be directly connected to IDE with no problem. However, it is sometimes better to add serial dumping resistances of 33Ω or so in order for countermeasure against noises. Output level of each IDE signal is 3.3V, and input level is 5V-tolerant. No pull-up or pull- down is required. EPSON Rev.A...

  • Page 46: Fdd

    TRK0# TRK0# RDATA# RDATA# DENSEL DENSEL WGATE# WGATE# HDSEL# HDSEL# STEP# STEP# DIR# DIR# WDATA# WDATA# 4.7kΩ×8 DR0# DR0# MTR0# MTR0# Resistance of 4.7kΩ × 8 is not necessary when built into FDD. Figure 4.2 FDD interface connection EPSON Rev.A...

  • Page 47: Keyboard/Mouse

    Keyboard KBDATA KBCLK 4.7K×2 Mouse MSDATA MSCLK Figure 4.3 Keyboard/mouse interface connection All the keyboard and mouse signals require pull-up resistance of 4.7kΩ or so. Pull-up resistance of 100kΩ or so is required even when not in use. EPSON Rev.A...

  • Page 48: Parallel Port

    5V of the system when the power of the system including SCE8720C is OFF and the power of the printer is ON. This is essential for such system which mis-operates when +5V becomes 1 to 2V. Place it as necessary. EPSON Rev.A...

  • Page 49: Serial Port

    In this case, even if only one port is detected as an overcurrent, both USBs are disabled. Connection example is shown below. Overcurrent SCE8720C detector USBON USBCUR# USB ch1 USBDP1 USBDM1 USB ch0 USBDP0 USBDM0 Figure 4.5 USB interface connection EPSON Rev.A...

  • Page 50: Speaker

    2 PCI devices can be connected as master. (limited by the numbers of REQ and GNT.) If you wish to connect a 5V PCI device, or PCI devices of more than 3, refer to the reference circuit in Appendix A. EPSON Rev.A...

  • Page 51: Limited Isa

    OFF, the power supply is switched to the battery power supply, V . Since this CCBAK switching circuit is inside SCE8720C, connect V and V directly to SCE8720. CCBAK CCSTB Protection resistance applying to UL is also built-in. EPSON Rev.A...

  • Page 52: Power Management Power Management

    ATX power supply is used, it is always supplied from the power supply unit when the AC cord is connected. When V -equivalent power cannot be obtained due to the power supply unit not CCSTB capable of ON/OFF control of the power supply, connect V instead. CC5V EPSON Rev.A...
  • Page 53 CARD-PCI/GX Hardware Manual CCBAK Supplied in order to maintain the RTC and C-MOS RAM when no V CCSTB supplied as the power is OFF. EPSON Rev.A...

  • Page 54: Power Sequence

    As a system power supply, it must be designed so that it is not damaged if a peak current is supplied. For that, the following measures are available. 1) Suppress the peak current from the current control circuit. Voltage drop due to this measure is acceptable. 2) Increase the current capacity. EPSON Rev.A...
  • Page 55 POWERGOOD inactive to V =3.15V CC3V ＆ V rise time CCCORE CC5V rise time CC3V ＆ V =4.75V to -100 CCCORE CC5V =0.33V CC3V Width of POWERGOOD =4.5V to POFF inactive CCSTB POFF active to V =4.5V CCSTB EPSON Rev.A...

  • Page 56: Power Sequence (For Power Supply Which Is Not Turned On/Off From The Software)

    For that, the following measures are available. 1) Suppress the peak current from the current control circuit. Voltage drop due to this measure is acceptable. 2) Increase the current capacity. *3: Connect V to V CCSTB CC5V EPSON Rev.A...

  • Page 57: Electrical Characteristics Electrical Characteristics

    Current Limit (*2) 4.75 5.25 2.5A CCCORE 4.75 5.25 CC5V 3.15 3.45 CC3V CCSTB CCBAK *2: Even if any part defect occurred in SCE8720Cxx, do not supply current over the current limit in order to suppress abnormal heating of SCE8720Cxx. EPSON Rev.A...

  • Page 58: Dc Characteristics (Under Recommended Operating Condition)

    Input leakage current =0.35V µA (*6) Input leakage current µA CC5V *1: ISA output signals other than SALATCH and ROMCS# signals (including bi- directional bus) *2: SALATCH and ROMCS# signals. *3: SBHE#, SA[19:16] and SD/SA[15:0] signals. (20kΩ pull-up) EPSON Rev.A...

  • Page 59: Lcd

    Output low voltage =8mA Output high voltage =-8mA 6.3.4 CRT Symbol Parameter Condition Min. Max. Unit Note Output low voltage =16mA (*1) Output high voltage =-16mA (*1) Output low voltage (*2) Output high voltage (*2) *1: CRTHSYNC,CRTVSYNC *2: CRTR,CRTG,CRTB EPSON Rev.A...

  • Page 60: Fdd

    (*6) Input leakage current µA (*7) CC5V Input leakage current µA (*7) *1: IDED[15:0], IDERDY, IDEINT(IRQ14), IDEDRQ *2: IDED[15:0], IDEA[2:0], IDEIOR#, IDEIOW#, IDEACK#, IDECS1FX#, IDECS3FX#, IDERESET# *3: IDED7 *4: IDEDRQ *5: IDERDY *6: IDEINT(IRQ14) *7: IDED[15:0](other than IDED7) EPSON Rev.A...

  • Page 61: Serial Port

    *1: All the parallel port signals. ( LPTD[7:0], LPTINIT#,LPTSTROBE#, LPTAFD#,LPTSLCTIN# LPTBUSY,LPTSLCT, LPTPE, LPTACK#,LPTERROR#) *2: LPTD[7:0],LPTINIT#,LPTSTROBE#, LPTAFD#,LPTSLCTIN# *3: LPTBUSY, LPTSLCT, LPTPE (*3 or *4 depending on the software settings) *4: LPTACK#, LPTERROR#, LPTPE (*3 or *4 depending on the software settings) EPSON Rev.A...

  • Page 62: Keyboard/Mouse

    PME1# signal (For compatibility with other cards, input should be set to low or high impedance.) Symbol Parameter Condition Min. Max. Unit Note Input low voltage -0.5 Input high voltage CCSTB µA Input leakage current CC5V Input leakage current -1.2 EPSON Rev.A...

  • Page 63: Ac97

    Max. Unit Note Input low voltage -0.3 (*1) Input high voltage (*1) Output low voltage =4mA (*2) Output low voltage =16mA (*3) Output high voltage =-4mA (*2) Output high voltage =-16mA (*3) *1: AC97SDIN0,AC97BITCLK *2: AC97SDOUT,AC97SYNC,PCBEEP *3: AC97RESET# EPSON Rev.A...

  • Page 64: Other Signals

    Input high voltage 0.7*V CC3V Input leakage current CC3V Input leakage current µA ROMDIS signal Symbol Parameter Condition Min. Max. Unit Input low voltage 0.3*V CC5V Input high voltage 0.7*V CC5V Input leakage current CC5V µA Input leakage current EPSON Rev.A...

  • Page 65: Current Consumption

    Measurement method: Startup Windows 98 and measure while nothing is being executed by the application.APM（Advanced Power Management）=OFF (Memory side: 64MB Display 1280 × 1024, 256-color CRT) Item Symbol Typ. Unit Note Current CCCORE CCCORE 17.1 CC5V CC5V =3.3V CC3V CC3V 0.35 CCSTB CCSTB µA CCBAK CCBAK Power(total) 4176.6 EPSON Rev.A...

  • Page 66: Typical Current Value 2

    Power(total) 2386.3 6.4.4 Standby current Measurement method: Measure in the standby mode. (Memory size: 64MB) Item Voltage Typ. Unit Note Current 17.2 CCCORE CCCORE 11.5 CC5V CC5V =3.3V CC3V CC3V 0.35 CCSTB CCSTB µA CCBAK CCBAK Power(total) 904.25 EPSON Rev.A...

  • Page 67: Ac Characteristics Ac Characteristics

    Specification 2.1 for details. 7.3 LIMITED ISA timing ISA signals comply with the ISA specifications. 7.3.1 Memory, I/O read cycle timing SA[19:16], SBHE# ROMCS# MEMCS16# IOCS16# MEMR#, IOR# SALATCH SD/SA[15:0] IOCHRDY Figure 7.1 Memory, I/O read cycle timing EPSON Rev.A...
  • Page 68 16 bits Read data valid hold to read Command inactive IOCHRDY inactive from active command 8 bits 16 bits IOCHRDY inactive pulse width 0.120 15.6 µS IOCHRDY active hold from inactive command Read command inactive to SD tristate EPSON Rev.A...

  • Page 69: Memory, I/O Write Cycle Timing

    Write Command active from SA[19:16] 8 bits 16 bits Memory write command pulse width 8 bits 16 bits IO write command pulse width 8 bits 16 bits Write data valid from write command 8 bits 16 bits Valid data from write command EPSON Rev.A...

  • Page 70: Ac97 Timing

    BITCLK 7.5 TFT timing tfpoutmin FPDOTCLK tfpoutmax TFT output Figure 7.4 TFT timing Symbol Parameter Min. Max. Unit Note tfpoutmin TFT output Delay from 0. 1 (Min Delay) FPDOTCLK FPDATA[17:0] tfpoutmax FPHSYNC,FPVSYNC (Max Delay) FPDISPEN,FPDOTE 5. 2 FPVEEON,FPVDDON EPSON Rev.A...

  • Page 71: Cautions On Use Cautions On Use

    6) Avoid heat, humidity and direct sunlight. 7) Do not insert or remove SCE8720Cxx while its power is turned on. 8) Do not copy or modify BIOS without permission. 9) When designing any product using SCE8720Cxx, refer to the application note as well. EPSON Rev.A...

  • Page 72: Appendix A. A. A. A. Appendix Peripheral Circuit Design Peripheral Circuit Design

    Note that customization of BIOS is needed in order to increase the number of PCI Devices. PCICLK terminal circuit (Eg. 15pF, 33Ω) CARD-PCI PCI device PCICLK0-2 PCI device PCI device or slot PCICLK terminal circuit (Eg. 15pF, 33Ω) PCI device or slot Figure A.1 PCICLK division EPSON Rev.A...

  • Page 73: Pci Device No. And Wiring Method For Interrupts

    (Note that sharing of interrupts is not available with Windows-CE.) PCI NO2 PCI NO1 PCI NO3 INTA# INTA# INTA# INTA# INTB# INTB# INTB# INTB# INTC# INTC# INTC# INTC# INTD# INTD# INTD# INTD# IDSEL IDSEL IDSEL IDSEL IDSEL AD25 AD24 AD26 CARD-PCI Figure A.2 Wiring of interrupts EPSON Rev.A...

  • Page 74: Connection Of 5V Device To Pci Bus

    PCI bus. To connect a 5V PCI device, use the level converter which converts signals from 5V device to 3.3V, as shown in the circuit below. (RN5RL43A) 4.3V regulator CARD-PCI Level device conver- (Eg. quality semiconductor PCICLK QS32X245) PCICLK Figure A.3 Connection method of 5V PCI device EPSON Rev.A...

  • Page 75: Io Extension Of Limited Isa Bus

    100h to 3FFh. (refer to the IO map in the section 1.6.) When decoding, the conditions SA0-9 and AEN=0 must be set to input. A.2.2 Pull-up of SD/SA[7:0] Pull-up SD/SA[7:0] by a resistance of 4.7kΩ or so. Otherwise, the software cannot detect empty space in the memory area. EPSON Rev.A...

  • Page 76: Sa[15:0] Latch

    This signal might be delayed due to increased load capacity, so externally add a pull-up resistance when load is heavy. Of course, this resistance must be within the range that can be driven by the device on the ISA. EPSON Rev.A...

  • Page 77: Smemr# And Smemw# Generation

    If this condition is absent, error such as improper overwrite on BIOS ROM might occur. Circuit example is shown below. ALS138 0 SA16 SA18 SA19 ROMCS# G2A# SA17 G2B# MEMCS16# ALS05 Figure A.7 Circuit to generate ROMCS16# *: MEMCS16# is active at D0000 to DFFFF. EPSON Rev.A...

  • Page 78: Power Supply Design: Power Control Circuit

    Reset power supply) Powergood Reset circuit POFF PWSW# ON/OFF SW 3.3V STANDBY# PME0# PME1# Suspend LED SUSPEND SW Figure A.7 Example of peripheral circuit for power not controlled by software Note) Connect V to V CC5V CCSTB EPSON Rev.A...

  • Page 79: Power Requiring On/Off By Software

    Reset Powergood power supply circuit POFF CCSTB PWSW# PON/OFF STANDBY# circuit PME0# PME1# CCSTB Wake on LAN、 Wake on RING 3.3V circuit Suspend LED Figure A.8 Example of peripheral circuit for power controlled by software EPSON Rev.A...

  • Page 80: Cautions On Compatibility Of Card-Pci

    PME0# signal to the PCI connector. For Wake on LAN using PME0# signal, use another connector. (There are connectors specified as “semi-standard”.) PCI connector (PCI2.1) A1 A2 ..A19 Not connected Another connector CCSTB CCSTB 2 GND PME0# of SCE8720C 3 PME# Figure A.9 Wiring example of PME0# EPSON Rev.A...

  • Page 81: Cautions On Artwork Design

    *2: In order to avoid variation of voltage when accessing HDD or CompactFlash, put a capacitor of required value to V CC5V. *3: 0.5 to 1 ceramic capacitor per IC is recommended. EPSON Rev.A...

  • Page 82: Address Bus And Data Bus

    GND via GND via GND via Clock signal GND via Signal via signal via Clock signals requiring attention is shown below. Clock signal name Frequency PCICLK0-2 33MHz FPDOTCLK 25MHz∼65MHz FPDOTE 12.5MHz∼32.5MHz AC97BITCLK 12.288MHz (varies depending on Codec specifications) EPSON Rev.A...

  • Page 83: Crt Rgb Signal

    Also, POWERGOOD signal should not be used to reset the system circuit (other than SCE8720C). This is fine from the logical viewpoint, but it does raise the possibility to extract noise, resulting in decreased liability. EPSON Rev.A...

  • Page 84: Timing Examples Of Power Management Signals

    2. Transit to/from the standby mode by PWSW# Supply CCSTB CC5V CCORE CC3V Supply inactive=LOW POFF POWERGOOD HIGH PWSW# ≤4S ≤4S STANDBY# Note) Do not supply V when V is OFF. CC5V CCSTB Figure B.2 PM signal operation timing example 2 EPSON Rev.A...
  • Page 85 Phone: +852-2585-4600 FAX: +852-2827-4346 Telex: 65542 EPSCO HX Northeast - TAIWAN - 301 Edgewater Place, Suite 120 EPSON TAIWAN TECHNOLOGY & TRADING LTD. Wakefield, MA 01880, U.S.A. Phone: +1-781-246-3600 FAX: +1-781-246-5443 10F, No. 287, Nanking East Road, Sec. 3 Taipei, TAIWAN...
  • Page 86 In pursuit of “ “ “ “ Saving” ” ” ” Technology, Epson electronic devices. Our lineup of semiconductors, liquid crystal displays and quartz devices assists in creating the products of our customers’ dreams. Epson IS energy savings.
  • Page 87 CARD-PCI/GX Hardware Manual SEIKO EPSON CORPORATION ELECTRONIC DEVICES MARKETING DIVISION Electronic Devices Information On Epson WWW server http://www.epson.co.jp/device/ Printed July, 2000 in Japan H A...

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