Pin Functions(Pd5653A) - Pioneer DEQ-P9 Service Manual

- Pin Functions(PD5653A)

Pin No. Pin Name
1 DFCK
2 VST1
3 VST2
4 VDT
5 VCK
6 CNVSS
7, 8 NC
reset
9
10 XOUT
11 VSS
12 XIN
13 VCC
nmi
14
bsens
15
asensb
16
17 NC
18 IPRQ
19, 20 NC
21 IPPW
22 IPIN
23 IPOUT
24 DSPOUT
25 NC
26 DSPCK
27-35 NC
36 LRSW
37 IFHIZ
38 MUTERQ
testin
39
40 DSPPW
41-60 NC
dspcs#-!
61-63
64 DSPCD
dsperr
65
dspack
66
dsprst
67
dirrst
68
69-71 DIRFS2-0
72 DIRERR
73 DIRPCM
74 DEMPHIN
75 AVSS
dfst
76
77 VREF
78 AVCC
79 NC
80 DFOUT
I/O Format Function and Operation
O C DF serial clock output
O C EVOL strobe output 1(H/M/L)
O C EVOL strobe output 2(SW)
O C EVOL data output(47k = P.DN)
O C EVOL serial clock output
I Vss connection
Not used
I Microcomputer hard reset input
O System clock output
I GND
I System clock input
I Microcomputer power supply 5V
I C Vcc connection(1k microcomputer power supply = P.UP)
I C B.up sense(47k microcomputer power supply = P.UP)
I C Acc sense(47k microcomputer power supply = P.UP)
Not used
I C IP-BUS request input(47k = P.DN)
Not used
O C IP-BUS driver power supply switching output
I N IP-BUS data input(47k = P.DN)
O N IP-BUS data output
O C DSP data output
Not used
O C DSP serial clock output
Not used
I L/R, separation/common data input
I C DSP microcomputer port Hi-z setting(47k = P.DN)
O C Hard mute request output
I C
Test program enable(47k microcomputer power supply = P.UP)
O C DSP IC power supply switching output
Not used
O C DSP chip select 3-1 output
O C DSP command/data information output
I C DSP error information input(47k DSP power supply = P.UP)
I C DSP acknowledge input
O C DSP reset output
O C DIR reset output
I C DIR sampling frequency information 2-0 input(47k = P.DN)
I C DIR lock/unlock information input(47k = P.DN)
I C DIR audio/data information input(47k = P.DN)
I C DIR emphasis information input(47k = P.DN)
I Vss connection
O C DF strobe output
I AD converter reference voltage input(Vcc connection)
I Vcc connection
Not used
O C DF data output(47k = P.DN)
I/O Format Meaning
C CMOS
N N channel open drain
DEQ-P9
35