Sony DPA-300 Service Manual page 79

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• IC4003
SYSTEM MICROPROCESSOR CPU (µPD70741GC-25-7EA) / PICTURE BOARD (2/3)
Pin No. Pin Name
1 GND
2 IORD
3 IOWR
4 NMI
5 HLDRQ
6 HLDAK
7 RXD/P09/TC
8 TXD/P08/UBE
9 SCLK/P07
10 SO/P6
11 SI/P5
12 DACK1/P04
13 DREQ1/P03
14 DACK0/P02
15 DREQ0/P01
16 GND
17 VDD
18 TCLR/P00
19 BLOCK/WDTOUT
20 ~ 23 INTP03 ~ INTP00
24 INTP13/TI
TE
L 13942296513
25 VDD
26 GND
27 ~ 29 INTP12 ~ INTP10
30 RESET
31 I.C.
32 ~ 39 D0 ~ D7
40 VDD
41 GND
42 ~ 49 D8 ~ D15
50 GND
51 VDD
52 A0
53 ~ 57 A1 ~ A5
58 VDD
59 GND
60 ~ 65 A6 ~ A11
66 GND
67 VDD
68 LCKOUT
69 VDD
70 X2
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I/O
— Ground
O (3) Read strobe signal output to I/O data
O (3) Write strobe signal output to I/O data
I Non-maskable interrupt request input (Not used)
I Bus right request input (Not used)
O Bus acknowledge signal output (Not used)
O DMA end signal output (Not used)
O (3) Data bus higher bytes enable signal output (Not used)
I/O Serial clock input/output of CSI (Not used)
O Serial data output of CSI (Not used)
I Serial data input of CSI (Not used)
O DMA acknowledge signal output (Channel 1)
I DMA request signal input (Channel 1)
O DMA acknowledge signal output (Channel 0)
I DMA request signal input (Channel 0)
— Ground
— Power supply (+5 V)
I External clear and start signal input to timer 0 (Not used)
O Bus prohibit signal output, or WDT overflow signal output (Not used)
I Interrupt request input (Not used)
I Interrupt request input (Not used)
— Power supply (+5 V)
— Ground
I Interrupt request input
I System reset input
— Connected Ground
I/O (3) Data bus input/output
— Power supply (+5 V)
— Ground
I/O (3) Data bus input/output
— Ground
— Power supply (+5 V)
O (3) Address bus output (Not used)
O (3) Address bus output
— Power supply (+5 V)
— Ground
O (3) Address bus output
— Ground
— Power supply (+5 V)
O System clock output
— Power supply (+5 V)
I Clock input (Not used)
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