Pioneer DEQ-P9 Manual de serviço - Página 35

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Pioneer DEQ-P9 Manual de serviço

- 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