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)
Summary of Contents for MU128
Page 7: ...7 7 7 7 7 MU128 MU128 MU128 MU128 MU128 28C99 8812612 LCD 28CA1 8812501 ...
Page 16: ...MU128 16 ...
Page 17: ...MU128 17 ...
Page 32: ...MU128 2 ...
Page 34: ...MU128 4 ...