Kenwood DVR-5070 Service Manual page 7

Port No. Port Name
Timers
116 PWM0
115 PWM1
114 PWM2
JTAG
113 TCK
112 TDI
111 TDO
110 TMS
109 TRST
Front-end
16 B DATA
17 B BCLK
18 B FLAG
19 B SYNC
Video DAC
27,26,25 R/G/B (OUT)
32~34 Y/C/CV (OUT)
29 I REF RG
28 V REF RG
36 I REF YC
35 V REF YC
23 VDD RGB
24 VSS RGB
30 VDD YCC
31 VSS YCC
Shared memory interface
69~66 SMI ADR(0~3)
58~63 SMI ADR(4~9)
70~73 SMI ADR(10~13)
84~93,
SMI DATA(0~15)
97~102
74,75 SMI CS(0,1)
76 SMI RAS
77 SMI CAS
78 SMI WE
79,80 SMI (DQML, DQMU)
82 SMI CLKIN
95 SMI CLKOUT
Power supply
4,47,81,107
VDD3 3
136,159,184
14,37,64,94
119,149,171 VDD2 5
198
5,15,38,50,65
83,96,108,121
VSS
137,150,160
172,185,199
CIRCUIT DESCRIPTION
Main
I/O
Function
I/O Unused
I/O Pulse width modula o
I/O Unused
I Test clock
I Test data in
O Test data out
I Test mode select
I Test reset
I 12S data
I 12S bit clock
I 12S error flag DVD
I 12S selector/ABS time
O R/G/B output
O Y/C/CV output
I I REF DAC RGB
I V REF DAC RGB
I I REF DAC YC
I Y REF DAC YC
- YDDA RGB =2.5V
- GND
- YDDA YCC =2.5V
- GND
O Address bus SDRAM
O Address bus SDRAM
O Address bus SDRAM
I/O Data bus SDRAM
O Chip select bank 0,1
O RAS SDRAM
O CAS SDRAM
O SDRAM write enable
O DQ MASK EN LOW, UP
I SDRAM clock in
O SDRAM clock out
- 3.3V Power supply
- 2.5V Power supply
- GND
DVR-5070
Alternate function
Input
HSYNC
Boot from ROM3
VSYNC
SER Data
SER BCLK
SER VALID
SER SYNC
Output
7