Pioneer AVIC-505 Service Manual page 67

Pin No. Pin Name
50 VDD
51 PORT2/SI
52 PORT1/SO
53 PORT0/sclk
54 VDD_PLL
55 X1
56 X2
57 GND_PLL
58 GND
59 VDD
60 GND
61 VDD
reset
62
drst
63
nmi
64
65 BT16B
66 GND
67 VDD
68 GND
69-72 DMAAK0-3
73-76 DMARQ0-3
tc/refrq
77
78,79 INTP03,02
80 VDD
81 GND
82,83 INTP01,00
84 TCLR
85 TI
86,87 INTP13,11
88 INTP12/TO11
89 INTP10/TO10
cs&
90
cs^
91
92 VDD
93 GND
cs%-#
94-96
97 VDD
98 GND
cs@,!
99,100
hldak
101
hldrq
102
ready
103
bcyst
104
iord
105
iowr
106
107 VDD
108 GND
109,110 A23,22
111 DDO
112 DMS
113 DCK
114 DDI
115-118 TRCDATA3-0
119 CLKOUT
120 VDD
I/O Function and Operation
Power supply
I/O Port/CSI data input
I/O Port/CSI data output
I/O Port/CSI clock input/output
PLL (internal clock generator) power supply
I Connect to crystal resonator (external clock input time open)
I Connect to crystal resonator/External clock input
PLL (internal clock generator) GND
GND
Power supply
GND
Power supply
I System reset
I Reset input (debug module)
I Non-maskable interrupt request
I Bus size appoint of boot time
GND
Power supply
GND
O DMA permission (CH0-CH3)
I DMA request (CH0-CH3)
O DMA transfer termination/DRAM reflesh request
I Interrupt request
Power supply
GND
I Interrupt request
I Timer 1 clear, start
I Timer 1 count clock input
I Interrupt request
I/O Interrupt request/RPU pulse output
I/O Interrupt request/RPU pulse output
O Memory chip select
O Memory chip select /I/O chip select
Power supply
GND
O Memory chip select /I/O chip select
Power supply
GND
O Memory chip select
O Use a bus permission
I Use a bus request
I Bus cycle termination request
O Bus cycle start
O I/O read strobe
O I/O write strobe
Power supply
GND
O Address bus
O Debug data output
I Debug mode select
I Debug clock input
I Debug data input
O Trace data output
O Bus clock output
Power supply
AVIC-505
67