Pioneer AVIC-N2, Service Manual

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AVIC-N2/XU/UC
281
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Pin No. Pin Name I/O Format Function and Operation
91 VSS6 GND
92 TEST2 Test mode
93 CKOEB l CK output enable input
94 CK O CPU clock output
95 CS5B O C DRAM low address strobe output
96 CS3B O
O DRAM column address strobe output
97 CS1B C DRAM column address upper byte strobe output
98 RTCVSS1
l
Power supply (3.3V)
99 SRAMB
l
Backup memory select input
100 STANBYB Stand by signal input
101 RTCVSS0 GND
102 XRTCIN l
C
C
C
Sub crystal oscillator input (RTC)
103 XRTCOUT O Sub crystal oscillator output (RTC)
104 RTCVCC Power supply (3.3V)
105 PCKSEL0 l Processor clock select input
106 PCKSEL1 l Processor clock select input
107 CCKSEL l
l/O
CRCK signal select input
108 CCKDIR Carrier clock direct input / inverter amp output
Power supply (3.3V)
109 CCKVCC
110 CRCK l Carrier clock input
111 CCKGND GND
112-118 PC0-6 l/O Parallel input / output
119 NMI Connect to VCC
120 RESETB l System reset input
121 MSTRSTB l Test reset input
122 TEST0 l Test mode input
123 TEST1 l Test mode input
124 REFSEL l GPS reference clock select input
125 REFCK l Reference clock input
126 VCC7 Power supply (3.3V)
127 VSS7 GND
128 XAUXIN l
C
C
Sub crystal oscillator output input (AUX)
129 XAUXOUT O Sub crystal oscillator output (AUX)
130-133 PIN0-3 l Parallel input
134-137 PIO4-7 l/O Parallel input / output
138 TXD3 l/O SIO3 Transmission data input / output
139 RXD3 l/O SIO3 Reception data input / output
140 BOWWOWB O Watch dog timer output
141 IFDIR l/O IF direct input / IF inverter amp output
142 IFVCC
l
l
Power supply (3.3V)
143 IF IF input
IF amp GND input
Format
C Meaning
C MOS
144
* PD3390A
72 37
109 144
36
1
73
108
IFGND