Pioneer AVIC-505 Service Manual page 71

Pin No. Pin Name
130 WTEXT
131,132 IRQEXT0,1
133 CPUSEL
134 VCPUCK
135 BCYST
136-138 DAK0-2
139 GND
140 VDD
141-144 CS4,3,1,7
145 IORD
146,147 TEST2,3
148 MRD
149 UUMWR
150 LUMWR
151 LLMWR
152 IOWR
153 TMC1
154 GND
155 READY
156 INT0
157,158 DRQ0,1
159 DRQ2
160 VDD
161 GND
162 TMC2
163-172 A23,22,11-4
173 GND
174 EXTAL5
175 XTAL5
176 VDD
177,178 A3,2
179,180 GND
181 VDD
182-185 D0-3
186 GND
187,188 D4,5
189 VDD
190 D6
191 GND
192-195 D7-10
196 GND
197-199 D11-13
200 GND
201 VDD
202-205 D14-17
206 TEST4
207 GND
208 EXTAL2
209 XTAL2
210 VDD
211-213 D18-20
214 GND
215,216 D21,22
217 VDD
218,219 D23,24
I/O Function and Operation
I Not used PU:connect to H
I Not used PU:connect to H
I CPU select signal input (0:V831 1:other CPU)
I Host bus cycle clock (28.7063MHz)
I Bus cycle start signal (active low)
I Host side response signal to DRQ 0-2
GND
Power supply
I Memory, I/O chip select signal from host (active low)
I I/O read strobe signal (active low)
I Test pin (TEST DECODE input 2, 3) Not used PD:connect to L
I Memory read strobe
I Memory write strobe (MSB)
I Memory write strobe
I Memory write strobe (LSB)
I I/O write strobe signal (active low)
I Test pin 1
GND
O Ready signal to the host (active low)
O Interrupt request signal to the host (active low)
O Data transfer request signal 0,1 to the host (active high)
O Monitor test output signal
Power supply
GND
I Test pin 2
I Address input
GND
O 33.8688MHz output
I 33.8688MHz input
Power supply
I Address input
GND
Power supply
I/O Host data input
GND
I/O Host data input
Power supply
I/O Host data input
GND
I/O Host data input
GND
I/O Host data input
GND
Power supply
I/O Host data input
I Test pin (TEST DECODE input 4) Not used PD:connect to L
GND
O 19.41MHz GDC description clock output Not used
I 19.41MHz GDC description clock input Not used PU:connect to H
Power supply
I/O Host data input
GND
I/O Host data input
Power supply
I/O Host data input
AVIC-505
71