Pioneer AVIC-505 Service Manual page 73

Pin No. Pin Name
36 RESET
37 CLKO
38 GND
39,40 A1,A2
41 VCC
42-49 A3-10
50 GND
51-62 A11-22
63 GND
64-68 MD0-4
69 GND
70 MD5
71 VCC
72-78 MD6-12
79 GND
80,81 MD13,14
82 VCC
83 MD15
84 MWE
85-86 MRAS0,1
87 MLCAS
88 MUCAS
89 GND
90 MOE
91-93 MA0-2
94 VCC
95-98 MA3-6
99 GND
100-104 MA7-11
105 GND
106 CLK1
107 VCC
108 FCLK
109 ODDF
110 GND
111 DCLK
112 CDE
113 VCC
114 DISP
115 CSYNC
116 GND
117 HSYNC/EXHSYNC
118 VSYNC/EXVSYNC
119-121 DD0-2
122 GND
123-125 DD3-5
126 VCC
127,128 DD6,7
129 GND
130-134 DD8-12
135 GND
136 DD13
137 VCC
138-141 DD14-17
142 CPUGND
143 IRL
144 WAIT
I/O Function and Operation
Reset
O Clock output
GND
I Address input
Power supply
I Address input
GND
I Address input
GND
I/O Memory data 0-4
GND
I/O Memory data 5
Power supply
I/O Memory data 6-12
GND
I/O Memory data 13, 14
Power supply
I/O Memory data 15
Memory write enable
Row address strobe
Column address strobe
Column address strobe
GND
O Memory output enable
O Memory address 0-2
Power supply
O Memory address 3-6
GND
O Memory address 7-11
GND
O Clock output
Power supply
O 1/2 description dot clock
I/O Odd number field signal (odd number:L)
GND
O Description clock output
O Color detection (DD terminal extra color output:H)
Power supply
O Display cycle signal (display cycle:H)
O Composite synchronous signal output
GND
I/O Horizontal synchronous output/
External horizontal synchronous input
I/O Vertical synchronous output/External vertical synchronous input
O Description data output 0-2
GND
O Description data output 3-5
Power supply
O Description data output 6,7
GND
O Description data output 8-12
GND
O Description data output 13
Power supply
O Description data output 14-17
GND
O Interrupt request
O CPU wait
AVIC-505
73