Pioneer CMX-3000, Service Manual

Page: 72 / 85

72
CMX-3000, CU-V163
CPU I/F
I/O Pin No.
CPU I/O EXTENSION
102 XCS5 I CH input for address decoding SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
SH3
103
XCS2 I CH input for address decoding
112 A25 I CH input for address decoding
113 A24 I CH input for address decoding
114 A23 I
I
I
I
CH input for address decoding
115 A3 address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
address input terminal for CPU
57
A2
56
A1
126
D15 I/O
124 D14 I/O
123 D13 I/O
122
D12 I/O
121 D11 I/O
120
D10 I/O
118 D9 I/O
117 D8 I/O
54 D7 I/O
51 D6 I/O
50
D5 I/O
49 D4 I/O
48 D3 I/O
47 D2 I/O
46 D1 I/O
44
D0 I/O
130
XDREQ1 O data request
data request
data akunoridge
data akunoridge
131 XDREQ0 O
96 XDACK1 I
99 XDACK0 I
60 XWE I write enable signal
59 XRD I read strobe signal
129 RD/XWR I
I
I
read write signal
15 CKIO system clock
100 XRST system reset
I/O Pin No.
CONFIGURATION OTHERS
I/O
Pin No.
141 EX_CONT1_A I/O
I/O
3 EX_CONT2_A
20 EX_CONT1B
21 EX_CONT2B I
I
83 DISC_LED_A O
84 DISC_LED_B O
109 M0 I
111 M1 I
106 M2 I
I
69 XPROGRAM O
39 DIN
68 XINIT O
37 CCLK I/O
72 DONE O
I/O Pin No.
9, 14, 24, 55
82, 92, 97, 125
1, 35, 36, 53, 70
71, 90, 107, 108
127,144
8, 17, 19, 25, 33
45, 52, 61, 73, 81
87, 98, 110, 135
143
Vccint 2.5V
Vccco 3.3V
GND GND
Connection Point
Connection Point
Pin Name Description
Pin Name
Pin Name
Pin Name
Description
Description Description
Pin Function (2/2)