DV-502/503/DVF-3050/3550
6
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Main
Alternate function
Function
Input
Output
13
PIO3(7) DVD RESET
I/O PIO3(7)
PARA DATA(7)/UART2 CTS
(CTS2)
COPM OUT0
39~46
PIO4(0~7)
I/O PIO4(0~7)
YC(0~7)
Reserved
20
B WCLK
I/O Unused
21
B V4
I/O Unused
22
NRSS OUT
I/O Unused
103
ADC SCLK
I/O Unused
104
ADC LRCK
I/O Unused
105
ADC DATA
I/O Unused
106
ADC PCMCLK
O
Unused
EMI Interface
161~170
CPU ADR(1~10)
O
ADR(1~10)
173~183
CPU ADR(11~21)
O
ADR(11~21)
141~148
CPU DATA(0~7)
I/O DATA(0~7)
151~158
CPU DATA(8~15)
I/O DATA(8~15)
138
CPU RAS1
I/O Unused
131
CPU WAIT
I
Connected to GND
130
CPU RW
O
READ NOT WRITE
128
CPU BE(0)
O
BYTE 0 ENABLE
129
CPU BE(1)
O
BYTE 1 ENABLE
139
CPU CAS0
O
DRAM CAS0
140
CPU CAS1
O
DRAM
135
CPU CE(0)
O
DRAM RAS0
134
CPU CE(1)
O
Chip Sel. BANK1
133
CPU CE(2)
O
Chip Sel. BANK2
132
CPU CE(3)
O
Chip Sel. BANK3
118
CPU PDR CLK
O
SDRAM clock
117
CPU OE
I/O Output enable
Interrupt
127
IRQ(0)
I
Unused
126
IRQ(1)
I
Unused
125
IRQ(2)
I
IRQ(2) (MD IRQ)
Timers
116
PWM0
I/O Unused
HSYNC
115
PWM1
I/O Pulse width modula o
Boot from ROM3
114
PWM2
I/O Unused
VSYNC
JTAG
113
TCK
I
Test clock
112
TDI
I
Test data in
111
TDO
O
Test data out
110
TMS
I
Test mode select
109
TRST4
I
Test reset
Front-end
16
B DATA
I
12S data
SER Data
17
B BCLK
I
12S bit clock
SER BCLK
18
B FLAG
I
12S error flag DVD
SER VALID
19
B SYNC
I
12S selector/ABS time
SER SYNC
Video DAC
27,26,25
R/G/B (OUT)
O
R/G/B output
32~34
Y/C/CV (OUT)
O
Y/C/CV output
29
I REF RG
I
I REF DAC RGB
28
V REF RG
I
V REF DAC RGB
