Pioneer CDX-P650, Service Manual

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38
CDX-P650
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Pin Functions (PD5513A)
Pin No. Pin Name I/O Format Function and Operation
1,2 NC Not used
3
adena
O C A/D reference voltage output
4 TXTSTE O C TEXT parameter output
5 TXTSO O C TEXT control parameter serial output
6 TXTSI I TEXT data serial input
7 TXTSCK O C TEXT clock output
8 BYTE I VCC joint
9 CNVSS I VSS joint
10 POWER O C CD +5V control
11 CONT O C Servo driver output control
12
reset
I Reset input
13 XOUT O Crystal oscillating element connection pin
14 VSS GND
15 XIN I Crystal oscillating element connection pin
16 VCC VDD
17
nmi
I Pull up
18
bsens
I Back Up sense input
19
asens
I ACC power sense input
20 TXTPACK I TEXT PACK interrupt input
21 IPTA4IN I IPIN joint
22
ippw
O C Power supply control output for IP BUS interface IC
23 NC Not used
24 CSEL I Compression select
25 SRAMSW I When there is SRAM,”H”
26 CCS O C IP-BUS chip select
27,28 NC Not used
29 IPIN I Data input from IP BUS interface IC
30 IPOUT O C Data output for IP BUS interface IC
31,32 NC Not used
33 FMIPSW I FM/IP BUS select switch
34
testin
I Test program mode input
35 XSO O NM LSI data output
36 XSI I LSI data input
37 XSCK O NM LSI clock output
38 M6M12 I 6/12 disc select input
39–43 NC Not used
44
rd
O C SRAM enable output
45 NC Not used
46
wr
O C SRAM write enable output
47 NC Not used
48
cs
O C SRAM chip select
49 XA0 O Control signal distinguishing data from microcomputer
50
xstb
O C CD LSI strobe output
51
xrst
O C CD LSI reset output
52 MIRR I Mirror detector input
53 LOCK I Spindle lock detector input
54 FOK I FOK signal input
55 NC Not used
56 A11 I Address BUS input
57 A9 O C SRAM address bus output
58 A8 O C SRAM address bus output
59 A13 O C SRAM address bus output
60 A14 O C SRAM address bus output
61 A12 O C SRAM address bus output
62 VCC VDD
63 A7 O C SRAM address bus output
64 VSS GND