Pioneer AVIC-505 Service Manual page 69

- Pin Functions (PD4844B)
Pin No. Pin Name
1,2 GND
3 REFCK
4 EXREFCK
5 VDD
6-9 CARD5-2
10 GND
11,12 CARD1,0
13 TXD0
14 BOWWOWB
15 GND
16 ADSCK
17 ADTXD
18 ADCSB
19 POUTR
20 GND
21 VDD
22 CK38F0
23 GND
24 RXD0
25 ADRXD
26 ADSRX
27 SPEED
28 GPIN3
29 GPIN2
30 GPIN1
31 GPIN0
32 VDD
33 IF
34 EXIF
35 GND
36 ADIO2
37 ADIO1
38 ADIO0
39 PIO15
40 VDD
41 GND
42-46 PIO14-10
47 GND
48-50 PIO9-7
51 PIO6
52 PIO5
53 GND
54 PIO4
55 PIO3
56 PIO2
57 PIO1
58 PIO0
59,60 GND
61 VDD
62 RTSB
63 TXD1
64 SIOCK2
65 TXD2
66 TXDIE
67 PWRIEB
68 SIOCKIE
69 GND
70 CTSB
I/O Function and Operation
GND
I 16.368MHz (inverter amp in) Not used PU:connect to H
I 16.368MHz GPS reference frequency input
Power supply
I/O Not used PD:connect to L
GND
I/O Not used PD:connect to L
O FM multi unit serial data output
O Watch dog timer alarm output
GND
O A/D serial data clock
O A/D transmitting data
O A/D chip select output
O Car speed pulse control output
GND
Power supply
I GPS 38.4MHz input
GND
I FM multi unit serial data input
I A/D receiving data
I A/D reception start input
I Car speed pulse input
I Not used PD:connect to L
I PLL detect of GPS H:normal L:abnormal
I GPS antenna open detect H:antenna L:non-antenna
I GPS antenna voltage detect
Power supply
I GPS IF input (4.092MHz)
I 4MHz external direct input Not used PD:connect to L
GND
I/O Back signal sense (active:Low)
I/O A/D input/output
I/O A/D input/output (conversion clock)
I/O CODEC reset
Power supply
GND
I/O Not used PU:connect to H
GND
I/O Not used PU:connect to H
I/O Flash control
I/O Guide output
GND
I/O Modem control
I/O AMUTE request output L:request H:release
I/O Parking brake sense (active:High)
I/O Illumination sense (active:Low)
I/O TEST mode Not used PU:connect to H
GND
Power supply
O Serial output for GPS almanac examination
O Serial output for GPS almanac examination
O Not used
I/O CD-ROM drive serial output
I/O Not used
O Not used
O Not used
GND
I Serial input for GPS almanac examination
AVIC-505
69