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Chip Architecture
IFIN+
IF
Frontend
IFIN-
CVBS in
YCrCb in
Video
Frontend
RGB in
CVBS out
Slicer
24kB
Char ROM
20kB XRAM
Fig. : Block diagram of the VCT 49xxI
CIRCUIT DESCRIPTIONS
IF
Sound
Processor
Demodulator
Comb
Color
Filter
Decoder
Component
Interface
Bus
Display
Arbiter
Generator
CPU
8051
256kB
Memory
Prog ROM
Interface
ADB, DB, PSENQ,
PSWEQ, WRQ, RDQ
Audio
Processor
Display &
Panorama
Deflection
Scaler
Processor
I2C Master/
Slave
Timer
CRT
PWM
ADC
UART
Watchdog
RTC
I/O-Ports
Pxy
PROT
HOUT
HFLB
VERT
EW
Video
SVM
Backend
RGB out
RGB in
SENSE
RSW
I2C
Reset & Test
RESETQ
Logic
TEST
Clock
XTAL1
Generator
XTAL2
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