Main Processor (U302) - Samsung DSB-S300G Service Manual

13-3 Main Processor (U302)

Main Processor is STi5100 which has functions as bellows.
13-3-1 Block diagram – STi5100
Shared
Memory
ST20 C2+ Core
8K ICache
DCJ
Int.Control
4K SRAM
8K DCache
Transport Steam
PTI
merger
TS0IN TS2IN
ser/par TS2OUT
1394OUT
Samsung Electronics
DDR SDRAM
128/256/512 Mbit
USB
LMI
2.0
2x I/F IR
SmCard Tx/Rx
DisEqC
ILC
TS1IN
par/D1
RGB/YUV
out
PAL
Blitter
Video NTSC
and
tile SECAM
Decoder
RAM
TV out
MAFE I/F
PWM
amd SiLabs
4x
3x
UARTs
SSCs
fig. 13-3
Circuit Operating Descriptions
ROM/
YC or
SFlash
CVBS
FMI
Te;etext
omterface
4X Audio
PIO decoder
Central
DMA
DC0
Audio
DACs
Analog audio
out L/R
SDRAM
peeripheral
Memory/bus
Request/grant
S/PDIF
out
13-3