Sharp DX-SX1H Service Manual page 52

DX-SX1H
IC602 RH-iX1474GEZZ: SACD Data Processor (IX1474GE) (2/2)
Terminal
Pin No.
Input/Output
Name
84 DVDD3
85-88 SD3-SD0 Output
89 SERR Output
90 SBGN Output
91 SENB Output
92 SDCK Output
93 DVSS
94 SREQ Input
95 RSTN Input
96 DVDD3
97 STDA Output
98 STCK Output
99 UPWM Output
100 DVSS
IC603 VHiSC514870SJ: 4Mbit DRAM (SC514870SJ)
Pin No. Terminal Name
10-13, 16-20, 9 A0-A8, A9R
8 RAS
23 CAS
2-5, 24-27 DQ1-DQ8
22 OE
7 WE
1 VCC
15, 28 VSS
6*, 21* NC
In this unit, the terminal with asterisk mark (*) is (open)
terminal which is not connected to the outside.
A0 ~ A8
A9R
Vcc
Vss
— Digital power supply (3.3V)
MPEG data output
MEPG data reliability flag (Data error = "L")
MEPG output sector synchronous signal (Sector head = "L")
MEPG data effective flag (Effective = "L")
MEPG data transfer clock
— Digital power supply (0V)
MEPG data request flag (In case of request = "L")
Hard reset input (In case of reset = "L")
— Digital power supply (3.3V)
Status data output
Status clock output
Universal PWM output
— Digital power supply (0V)
Function
Address input
Row address strobe
Column address strobe
Data input/Data output
Output enable
Write enable
Power supply (5V)
Ground (0V)
Not used
Timing
RAS
Generator
CAS
Column
9
Address
Buffers
Internal
Refresh
Address
Control Clock
Counter
Row
9
Row
Address
10 Word
De-
Buffers
Drivers
1
coders
Vcc
On Chip
Vcc Generator
Vss
Figure 52 BLOCK DIAGRAM OF IC
Function
Timing
Generator
Write
Column
Clock
9
Decoders
Generator
I/O
Sense
8
Selector
Ampliliers
Memory
Cells
– 52 –
Remarks
For logic cell
For logic cell
Level TTL
For logic cell
For logic cell
WE
OE
Output
8 8
Buffers
8
8 DO1 ~ DO8
Input
8
8
Buffers