Samsung SCX-4200 Series - Page 29

System Overview
Samsung Electronics
Service Manual
3-13
Boundary Scan
ARM7TDMI TAP
Controller
General Purpose I/O
Bus Arbiter
Write
Buffer
ARM7TDMI
CPU Core
Cache
4K Byte
CPU Unit
System Timer
(4-ch)
GPIO
Controller
Watchdog Timer
10bit ADC
Rotator
RTC
(Real Time Clock)
JTAG
AIN[3:0]
General DMA
(2-CH)
Interrupt
Controller
Memory I/F ROM/
SRAM
DRAM/SDRAM
IP_TOP
SSB
USB v1.1
UART (2-ch)
HP SIO
Tone Generator
CRCON
LFCON
CRFIRE
LSU I/F
Parallel Port
(P1284)
System Bus Bridge & Arbitration /
BDMA (2-Ch.)
Clock Generator
(MPLL)
Clock Generator
(UPLL)
PRT_TOP
Clock Generator
(PPLL)
Chorus 2 Block Diagram