Yamaha PC9501N, Service Manual

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PC9501N
16
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LSI PIN DESCRIPTION
（LSI 端子機能表）
• HD64F7044F28V (X5719B00) CPU
IN10: IC801
PIN
NO.
NAME I/O FUNCTION
PIN
NO.
NAME I/O FUNCTION
1 PE1/TIOC4C/DACK0/AH
_____
I/O Port E / MTU I/O / DMA transfer strobe / Address hold 57 PD11/D11 I/O
Port D / Data bus
2 PE15/TIOC4D/DACK1/IRQOUT I/O Port E / MTU I/O / DMA transfer strobe / Interrupt request output 58 PD10/D10 I/O
3 Vss I Ground 59 PD9/D9 I/O
4 PC0/A0 O
Port C / Address bus
60 PD8/D8 I/O
5 PC1/A1 O 61 Vss I Ground
6 PC2/A2 O 62 PD7/D7 I/O
Port D / Data bus
7 PC3/A3 O 63 PD6/D6 I/O
8 PC4/A4 O 64 PD5/D5 I/O
9 PC5/A5 O 65 Vcc I Power supply
10 PC6/A6 O 66 PD4/D4 I/O
Port D / Data bus
11 PC7/A7 O 67 PD3/D3 I/O
12 PC8/A8 O 68 PD2/D2 I/O
13 PC9/A9 O 69 PD1/D1 I/O
14 PC10/A10 O 70 PD0/D0 I/O
15 PC11/A11 O 71 Vss I Ground
16 PC12/A12 O 72 XTAL I Crystal oscillator
17 PC13/A13 O 73 MD3 I Mode set
18 PC14/A14 O 74 EXTAL I External clock
19 PC15/A15 O 75 MD2 I Mode set
20 PB0/A16 O Port B / Address bus 76 NMI I Non-maskable interrupt request
21 Vcc I Power supply 77 Vcc I Power supply
22 PB1/A17 O Port B / Address bus 78 MD1 I
Mode set
23 Vss I Ground 79 MD0 I
24 PB2/IRQ0
________
/POE0
_________
/RAS
_______
I/O Port B / Interrupt request / Port output enable / Row address strobe 80 PLLVcc I PLL power supply
25 PB3/IRQ1
________
/POE1
________
/CASL
________
I/O Port B / Interrupt request / Port output enable / Lower column address strobe 81 PLLCAP I PLL capacitance
26 PB4/IRQ2
________
/POE2
________
/CASH
________
I/O Port B / Interrupt request / Port output enable / Upper column address strobe 82 PLLVss I PLL ground
27 Vss I Ground 83 PA15/CK O Port A / System clock
28 PB5/IRQ3
________
/POE3
_________
/RDWR I/O Port B / Interrupt request / Port output enable / DRAM read/write 84 RES
_______
I Power-on reset
29 PB6/IRQ4
_________
/A18/ BACK
___________
I/O Port B / Interrupt request / Address bus / Bus request acknowledge 85 PE0/TIOC0A/DREQ0
____________
I/O Port E / MTU I/O / DMA transfer request
30 PB7/IRQ5
_________
/A19/BREQ
___________
I/O Port B / Interrupt request / Address bus / Bus request 86 PE1/TIOC0B/DRAK0 I/O Port E / MTU I/O / DREQ request acknowledgement
31 PB8/IRQ6
_________
/A20/ WAIT
__________
I/O Port B / Interrupt request / Address bus / Wait 87 PE2/TIOC0C/DREQ1
____________
I/O Port E / MTU I/O / DMA transfer request
32 PB9/IRQ7
_________
/A21/ADTRG
____________
I/O Port B / Interrupt request / Address bus / A/D conversion trigger input 88 PE3/TIOC0D/DRAK1 I/O Port E / MTU I/O / DREQ request acknowledgement
33 Vss I Ground 89 PE4/TIOC1A I/O Port E / MTU I/O
34 PA14/RD
_____
O Port A / Read 90 Vss I Ground
35 WDTOVF
_______________
O Watchdog time overflow 91 PF0/AN0 I
Port F / Analog input
36 PA13/WRH
________
O Port A / Upper write 92 PF1/AN1 I
37 Vcc I Power supply 93 PF2/AN2 I
38 PA12/WRL
________
O Port A / Lower write 94 PF3/AN3 I
39 Vss I Ground 95 PF4/AN4 I
40 PA11/CS1
_______
O
Port A / Chip select
96 PF5/AN5 I
41 PA10/CS0
_______
O 97 AVss I Analog ground
42 PA9/TCLKD/IRQ3
________
I
Port A / MTU timer clock input / Interrupt request
98 PF6/AN6 I
Port F / Analog input
43 PA8/TCLKC/IRQ2
________
I 99 PF7/AN7 I
44 PA7/TCLKB/CS3
______
I/O
Port A / MTU timer clock input / Chip select
100 AVcc I Analog power supply
45 PA6/TCLKA/CS2
______
I/O 101 Vss I Ground
46 PA5/SCK1/DREQ1
___________
/IRQ1
_______
I/O Port A / Serial clock / DMA transfer request / Interrupt request 102 PE5/TIOC1B I/O Port E / MTU I/O
47 PA4/TXD1 O Port A / Data transmission 103 Vcc I Power supply
48 PA3/RXD1 I Port A / Data reception 104 PE6/TIOC2A I/O
Port E / MTU I/O
49 PA2/SCK0/DREQ0
___________
/IRQ0
________
I/O Port A / Serial clock / DMA transfer request / Interrupt request 105 PE7/TIOC2B I/O
50 PA1/TXD0 O Port A / Data transmission 106 PE8/TIOC3A I/O
51 PA0/RXD0 I Port A / Data reception 107 PE9/TIOC3B I/O
52 PD15/D15 I/O
Port D / Data bus
108 PE10/TIOC3C I/O
53 PD14/D14 I/O 109 Vss I Ground
54 PD13/D13 I/O 110 PE11/TIOC3D I/O
Port E / MTU I/O
55 Vss I Ground 111 PE12/TIOC4A I/O
56 PD12/D12 I/O Port D / Data bus 112 PE13/TIOC4B/MRES
__________
I/O Port E / MTU I/O / Manual reset