DVR-505/7000
7
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Main
Alternate function
Function
Input
Output
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
TRST
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
36
I REF YC
I
I REF DAC YC
35
V REF YC
I
Y REF DAC YC
23
VDD RGB
-
YDDA RGB =2.5V
24
VSS RGB
-
GND
30
VDD YCC
-
YDDA YCC =2.5V
31
VSS YCC
-
GND
Shared memory interface
69~66
SMI ADR(0~3)
O
Address bus SDRAM
58~63
SMI ADR(4~9)
O
Address bus SDRAM
70~73
SMI ADR(10~13)
O
Address bus SDRAM
84~93
SMI DATA(0~15)
I/O
Data bus SDRAM
97~102
74,75
SMI CS(0,1)
O
Chip select bank 0,1
76
SMI RAS
O
RAS SDRAM
77
SMI CAS
O
CAS SDRAM
78
SMI WE
O
SDRAM write enable
79,80
SMI (DQML, DQMU)
O
DQ MASK EN LOW, UP
82
SMI CLKIN
I
SDRAM clock in
95
SMI CLKOUT
O
SDRAM clock out
Power supply
4,47,81,107
136,159,184
VDD3 3
-
3.3V Power supply
14,37,64,94
119,149,171
VDD2 5
-
2.5V Power supply
198
5,15,38,50,65
83,96,108,121
137,150,160
VSS
-
GND
172,185,199