Casio QT-6600 Service Manual page 86

8-3. LSI BLOCK DIAGRAM
EXTERNAL RTC
REAR LCD
DISPLAY
CLOCK SYNCHRONOUS
160x32dot
SERIAL
PORT x2
LCD BACKLIGHT
(GREEN&WHITE)
PORT
POWER LED
ASYNCHRONOUS
SERIAL
COM1
PANEL TYPE (ENH/Jr.Judgment)
INT PWD
IOC CTS
EtherNet
LIME
GA
OUND
Power supply Control (Backup)
POWER SUPPLY/
PWD CIRCUIT
TouchPanel
TouchPanel
Controller
EEPROM
PS/2
KEY BOARD
CHARGING ON/OFF
OUTPUT × 1
BACKUP POWER
SUPPLY
CONTROL UNIT
TEMP/VOLTAGE
A/D × 2
PORT
CPU
Renesas Technology Corp.
SH7763
INTERNAL: 266MHz
BUS: 66MHz
INTERNAL RTC
(NOT BACKUP)
PORT
PWD HALT
RESET
UART
INT × 2
OUTPUT × 1
TxD/RxD
RESET
FLMD0
UART
TxD/RxD
IOC
NEC Electronics Corp.
V850 KF2
20MHz
INVERTOR
UNIT
LCD CONTROLLER
(GC)
FUJITSU LIME
(MB86276)
NOR FLASH ROM
32MB x2
SH BUS 32/16bit
(32bit/66MHz: LIME,
FROM (Backup only)
BUFFER
DDR DRAM I/F
DDR SDRAM
32bit
64MB
133MHz
SQUARE WAVE OUTPUT (BEEP)
KI × 2 SWITCH
× 2
INT × 1/DK OUTPUT × 1
Dallas KEY
× 1
INT × 2/INPUT × 4 MCR
DRAWER
OUTPUT × 2/INPUT × 2
× 2
— 83 —
LCD BACKLIGHT
LCD BACKLIGHT
LVDS
LCD
LVDS
Conversion IC
XGA
1024 × 768
RGB 24bit
Digital
SDRAM I/F
SDRAM
32bit 100MHz
16MB
DDR SDRAM BACKUP
PROGRAM
NOR FLASH ROM
32MB
GA
COM2 to 6
RS232C
EtherNet IC
LAN9115
BUFFER
CF-CARD
MIC (INTERNAL)
MIC (EXTERNAL)
SOUND IC
SPEAKER (INTERNAL)
AMPLIFIER
SPEAKER (EXTERNAL)
DISP ON/OFF SWITCH
INIT SWITCH
NTT+ABA
IATA+ABA