Pioneer DEH-P690UB/XN/UC Service Manual page 74

1
- Pin Functions (PEG312A8)
Pin No. Pin Name
1 NC
2 ROMDT
A
3 ROMCK
4 REM
5 ROMCS
6 BYTE
7 CNVSS
8,9 NC
reset
10
11 XOUT
12 VSS1
13 XIN
14 VCC1
B
nmi
15
16 NC
ks#
17
ks@-)
18-20
21 NC
22 DSEL
23 NC
24 CKD
25 NC
26 LS
27 DPDT
28 KYDT
C
29-32 NC
33 OELD
34 NC
35 CLK0
36 NC
rdy
37
38 NC
hold
39
40,41 NC
rd
42
43-45 NC
46,47 CS2,1
D
cs)
48
49 A19
50 A18
51 A17
52 A16
53 A15
54 A14
55 A13
56 A12
57 A11
58 A10
E
59 A9
VCC2
60
61 A8
62 VSS2
63 A7
64 A6
65 A5
F
74
1
2
I/O Format Function and Operation
Not used
ROM correction data input/output
I/O C
ROM correction clock output
O C
Remote control input
I
O C ROM correction chip select output
External data bus width change input(VSS)
I
Processor mode change input
I
Not used
Reset input
I
Clock output
O
GND
I Clock input
Power supply input
NMI input
I
Not used
Key strobe 3(Not used)
O C
I/O C Key strobe 2-0
Not used
O C OEL driver : Display data select
Not used
OEL driver : Data transfer and driver clock frequency
O C
Not used
OEL driver : Line sync signal
O C
I N System controller communication : Display data input
System controller communication : Key data output
O N
Not used
OEL driver : Display data
O C
Not used
OEL driver : Clock input for UART0
I C
Not used
I C RDY signal input
Not used
HOLD signal input
I C
Not used
Image ROM : Read strobe
O C
Not used
Image ROM : Bank address 1,0
O C
O C External extended ROM chip select(image ROM)
Image ROM : Address bus 19 bit
O C
Non connection
O C
Image ROM : Address bus 17 bit
O C
Image ROM : Address bus 16 bit
O C
C Image ROM : Address bus 15 bit
O
Image ROM : Address bus 14 bit
O C
O C Image ROM : Address bus 13 bit
Image ROM : Address bus 12 bit
O C
Image ROM : Address bus 11 bit
O C
Image ROM : Address bus 10 bit
O C
Image ROM : Address bus 9 bit
O C
Power supply input
Image ROM : Address bus 8 bit
O C
GND
Image ROM : Address bus 7 bit
O C
Image ROM : Address bus 6 bit
O C
Image ROM : Address bus 5 bit
O C
DEH-P690UB/XN/UC
2
3
3
4
4