Yamaha MU128, Руководство по обслуживанию

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MU128
13
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HD6437043E00F (XS936A00) CPU
PIN
NO.
NAME I/O FUNCTION
PIN
NO.
NAME I/O FUNCTION
1 /WRHH O HH write 73 D15 I/O
2 PE14 I/O Port E 74 D14 I/O Data bus
3 /WRHL O NC 75 D13 I/O
4 PA21 I Flash/WE write check (RY/BY) 76 D12 I/O
5 PE15 I/O LCD, SW, LED Data control (DB7) 77 VCC - Power supply
6 VSS I Ground 78 D11 I/O Data bus
7 A0 O 79 VSS - 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 supply 84 D6 I/O
13 A5 O Address bus 85 VCC - Power supply
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 - Crystal oscillator
23 A14 O 95 MD3 - Mode select
24 A15 O 96 EXTAL - Crystal oscillator
25 A16 O 97 MD2 - Mode select
26 VCC - Power supply 98 NMI - Non-maskable interrupt
27 A17 O Address bus 99 VCC - Power supply
28 VSS - Ground 100 PA16 I Rotary encoder (REB)
29 PA20 O LED control 101 PA17 I Rotary encoder (REA)
30 PA19 O NC 102 MD1 - Mode select
31 PB2 O PB select (SW1) 103 MD0 - Mode select
32 PB3 O PB select (SW2) 104 PLLVCC - PLL power supply
33 PA18 O SW data read (SWD) 105 PLLCAP - PLL capacitor
34 PB4 O PB select (SW3) 106 PLLVSS - PLL ground
35 VSS - Ground 107 PA15 O Rotary encoder (RER)
36 PB5 O PB select (SW4) 108 /RES - Reset
37 A18 O 109 PE0 O LCD control (LCD-R/W)
38 A19 O Address bus 110 PE1 O NC
39 A20 O 111 PE2 O LCD control (LCD-RS)
40 VCC - Power supply 112 VCC - Power supply
41 A21 O Address bus 113 PE3 O Latch for reset (LCREAD)
42 VSS - Ground 114 PE4 O LCD control (LCD-E)
43 /RD O Read 115 PE5 O 1M clock for mac.
44 /WDTOVF - NC 116 PE6 O Clock for PB serial (SICLK)
45 D31 I/O Data bus 117 VSS - Ground
46 D30 I/O Data bus 118 AN0 I A/D input level (R)
47 /WRH O High write 119 AN1 I
48 /WRL O Low write 120 AN2 I A/D input level (L)
49 /CS1 O Chip select for SRAM 121 AN3 I A/D jack check
50 /CS0 O Chip select for system Rom 122 AN4 I Host sw position
51 PA9 O PB select (SW6) 123 AN5 I Off-line detection
52 PA8 O PB select (SW5) 124 AVSS - Analog ground
53 /CS3 O Chip select for serial interface 125 AN6 I Battery check
54 /CS2 O Chip select for SWP30 126 AN7 I Model check
55 VSS - Ground 127 AVREF I A/D refference voltage
56 D29 I/O 128 AVCC I Analog power supply
57 D28 I/O 129 VSS - Ground
58 D27 I/O Data bus 130 RXD0 I MIDI-IN
59 D26 I/O 131 TXD0 MIDI-OUT
60 D25 I/O 132 /IRQ0 I Serial ready for PB
61 VSS - Ground 133 RXD1 I MIDI-IN
62 D24 I/O Data bus 134 TXD1 O MIDI-OUT
63 VCC - Power supply 135 VCC - Power supply
64 D23 I/O 136 PA5 O MIDI-IN A front/rear select
65 D22 I/O 137 PE7 O SW storobe (SWS)
66 D21 I/O 138 PE8 I/O
LCD, SW, LED data control (DB0)
67 D20 I/O Data bus 139 PE9 I/O LCD, SW, LED data control (DB1)
68 D19 I/O 140 PE10 I/O
LCD, SW, LED data control (DB2)
69 D18 I/O 141 VSS - Ground
70 D17 I/O 142 PE11 I/O
LCD, SW, LED data control (DB3)
71 VSS - Ground 143 PE12 I/O LCD, SW, LED data control (DB4)
72 D16 I/O Data bus 144 PE13 I/O
LCD, SW, LED data control (DB5)