Pioneer DEH-P920R Service Manual - Page 93

Pin Functions PD5471A

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DEH-P920R,P9200R,P9250 - Pin Functions (PD5471A) Pin No. Pin Name 1-4 NC 5 REM 6 BYTE 7 CNVSS 8,9 NC 10 reset 11 XOUT 12 VSS 13 XIN 14 VDD 15 nmi 16 NC 17-20 kd1-4 21-26 ks1-6 27-31 NC 32 ILMD 33 KYDT 34 DPDT 35 NC 36 OEL 37 rdy 38 NC 39 hold 40,41 NC 42 rd 43 NC 44 wr 45 NC 46 cs2 47 cs1 48 cs0 49 A19 50 NC 51-59 A17-9 60 VDD 61 A8 62 VSS 63-69 A7-1 70 NC 71-86 D15-0 87-93 NC 94 AVSS 95 NC 96 VREF 97 AVCC 98-100 NC *PD5471A 50 51 26 I/O Format Function and Operation Not used I Remote control reception I External data BUS width select input I Processor mode select input Not used I Reset input O Crystal oscillating element connection pin GND I Crystal oscillating element connection pin VDD I NMI input Not used I Key data 1-4 I/O Key strobe input/output 1-6 Not used O C Dual illumination O C Key data output I Display data input Not used O C OEL controller ON I OEL controller ready input Not used I Hold input Not used O C Read strobe Not used O C Write strobe Not used O C Bank address (High) O C Bank address (Low) O C External ROM chip select O C Address bus Output Not used O C Address bus Output VDD O C Address bus Output GND O C Address bus Output Not used I/O Data bus input/output Not used Connect to VSS Not used Connect to VSS Connect to VCC Not used 25 75 1 100 76 Downloaded from www.Manualslib.com manuals search engine Format C Meaning C MOS 93

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93
DEH-P920R,P9200R,P9250
-
Pin Functions (PD5471A)
Pin No.
Pin Name
I/O
Format
Function and Operation
1–4
NC
Not used
5
REM
I
Remote control reception
6
BYTE
I
External data BUS width select input
7
CNVSS
I
Processor mode select input
8,9
NC
Not used
10
reset
I
Reset input
11
XOUT
O
Crystal oscillating element connection pin
12
VSS
GND
13
XIN
I
Crystal oscillating element connection pin
14
VDD
VDD
15
nmi
I
NMI input
16
NC
Not used
17–20
kd1-4
I
Key data 1-4
21–26
ks1-6
I/O
Key strobe input/output 1-6
27–31
NC
Not used
32
ILMD
O
C
Dual illumination
33
KYDT
O
C
Key data output
34
DPDT
I
Display data input
35
NC
Not used
36
OEL
O
C
OEL controller ON
37
rdy
I
OEL controller ready input
38
NC
Not used
39
hold
I
Hold input
40,41
NC
Not used
42
rd
O
C
Read strobe
43
NC
Not used
44
wr
O
C
Write strobe
45
NC
Not used
46
cs2
O
C
Bank address (High)
47
cs1
O
C
Bank address (Low)
48
cs0
O
C
External ROM chip select
49
A19
O
C
Address bus Output
50
NC
Not used
51-59
A17-9
O
C
Address bus Output
60
VDD
VDD
61
A8
O
C
Address bus Output
62
VSS
GND
63–69
A7-1
O
C
Address bus Output
70
NC
Not used
71–86
D15-0
I/O
Data bus input/output
87–93
NC
Not used
94
AVSS
Connect to VSS
95
NC
Not used
96
VREF
Connect to VSS
97
AVCC
Connect to VCC
98-100
NC
Not used
Format
Meaning
C
C MOS
*PD5471A
25
26
50
51
75
76
100
1
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