Yamaha A5000 - Page 14

A5000/A4000
14
HD6437043AE00F
(XW795A00)
CPU
PIN
NO.
NAME I/O FUNCTION
PIN
NO.
NAME I/O FUNCTION
1 /WRHH O HH write 73 D15 I/O
2 DACK0 O DMA transfer strobe 74 D14 I/O Data bus
3 PA22 O Port A 75 D13 I/O
4 /CASHH O HH Column address strobe 76 D12 I/O
5 PE15 I/O Port E 77 VCC I Power suppl
y
6 VSS - Ground 78 D11 I/O Data bus
7 A0 O 79 VSS I Ground
8 A1 O 80 D10 I/O
9 A2 O Address bus 81 D9 I/O
10 A3 O 82 D8 I/O Data bus
11 A4 O 83 D7 I/O
12 VCC - Power suppl
y
84 D6 I/O
13 A5 O Address bus 85 VCC I Power suppl
y
14 VSS - Ground 86 D5 I/O Data bus
15 A6 O 87 VSS - Ground
16 A7 O 88 D4 I/O
17 A8 O 89 D3 I/O
18 A9 O 90 D2 I/O Data bus
19 A10 O 91 D1 I/O
20 A11 O Address bus 92 D0 I/O
21 A12 O 93 VSS - Ground
22 A13 O 94 XTAL I Cr
y
stal oscillator
23 A14 O 95 MD3 I Mode select 3
24 A15 O 96 EXTAL I Cr
y
stal oscillator
25 A16 O 97 MD2 I Mode select 2
26 VCC - Power suppl
y
98 NMI I Non-maskable interrupt
27 A17 O Address bus 99 VCC I Power suppl
y
28 VSS - Ground 100 PA16 I/O Port A
29 /CASHL O HL Column address strobe 101 /WAIT I/O Wait
30 PA19 I/O Port A 102 MD1 I Mode select 1
31 /RAS O Row address strobe 103 MD0 I Mode select 0
32 /CASL O Column address strobe (low) 104 PLLVCC I PLL power supply
33 PA18 I/O Port A 105 PLLCAP I PLL capacitor
34 /CASH O Column address strobe (high) 106 PLLVSS I PLL ground
35 VSS - Ground 107 CK I/O Clock
36 RDWR O DRAM read/write 108 /RES I Reset
37 A18 O 109 /DREQ0 I DMA transfer request
38 A19 O Address bus 110 DRAK0 I/O DMA transfer strobe
39 A20 O 111 /DREQ1 I/O DMA transfer request 1
40 VCC I Power supply 112 VCC I Power supply
41 A21 O Address bus 113 PE3 I/O
42 VSS I Ground 114 PE4 I/O Port E
43 /RD O Read 115 PE5 I/O
44 /WDTOVF O Watch dog timer overflow 116 PE6 I/O
45 D31 I/O Data bus 117 VSS - Ground
46 D30 I/O 118 PF0 I/O
47 /WRH O High write 119 PF1 I/O
48 /WRL O Low write 120 PF2 I/O Port F
49 /CS1 O Chip select 1 121 PF3 I/O
50 /CS0 O Chip select 0 122 PF4 I/O
51 /IRQ3 I Interrupt request 3 123 PF5 I/O
52 /IRQ2 I Interrupt request 2 124 AVSS I Analog ground
53 /CS3 O Chip select 3 125 PF6 I/O Port F
54 /CS2 O Chip select 2 126 PF7 I/O
55 VSS - Ground 127 AVREF I Analog reference voltage
56 D29 I/O 128 AVCC - Analog power supply
57 D28 I/O 129 VSS - Ground
58 D27 I/O Data bus 130 RxDO I Receive data
59 D26 I/O 131 PA1 I/O Part A
60 D25 I/O 132 /IRQ0 I Interrupt request 0
61 VSS - Ground 133 RxD1 I Receive data
62 D24 I/O Data bus 134 TXD1 I/O Transmit data
63 VCC - Power supply 135 VCC - Power supply
64 D23 I/O 136 IRQ1 I/O Interrupt request 1
65 D22 I/O 137 PE7 I/O
66 D21 I/O 138 PE8 I/O Port E
67 D20 I/O Data bus 139 PE9 I/O
68 D19 I/O 140 PE10 I/O
69 D18 I/O 141 VSS - Ground
70 D17 I/O 142 PE11 I/O
71 VSS - Ground 143 PE12 I/O Port E
72 D16 I/O Data bus 144 PE13 I/O
(IC1)