91
Sirius-PJ1Training
Slide 91
Video Signal Processing
IC4001
SH7670
CPU
IC3001
REON VX-210
SCALER
IC3102
Nor Flash ROM
128Mb
IC3106
DDR2 SDRAM
512Mb
IC3105
DDR2 SDRAM
512Mb
IC3104
DDR2 SDRAM
512Mb
IC3103
DDR2 SDRAM
512Mb
RGB 10bit x3
CLK,H,V
RGB 10bit x3
RGB 10bit x3
CLK,H,V,DE,FILED
To Combine2
From SyncDet
From SyncDet
CPUREQ TxD/RxD
REONREQ TxD/RxD
CLK,H,V,DE,FILED
Local BUS
DDR2 I/F
27MHz
REON (IC3001) is a LSI which has a integrated function of CPU, video signal
processing circuit, OSD generation/multiple processing, USB, and peripheral
functions (I2C, UART, GPIO). It is mainly used for various video signal
processing, including resolution conversion, keystone correction, sharpness,
OSD, and PIP/PBP.
With the peripheral devices, a 128Mb Flash ROM (IC3102) in which firmware is
stored, and 512Mb DDR2 SDRAM x4 (IC3103, IC3104, IC3105, IC3106) as work
memory for the video signal processing are connected. For the communication
with the CPU, 2nd circuit serial interfaces are used.
The video signal which is output from SyncDet (IC2801) is processed in this
order: sharpness, resolution conversion, OSD generation/multiple processing,
keystone correction. Then a 10-bit 3ch video signal is output to Combine2.
