Samsung SCX-4200 manual Chorus 2 Block Diagram, CPU Unit

System Overview

Chorus 2 Block Diagram

				Bus Arbiter
					Memory I/F ROM/
			CPU Unit		SRAM
					DRAM/SDRAM
			Write		PRT_TOP
			Buffer
		Boundary Scan	ARM7TDMI		Interrupt
JTAG		ARM7TDMI TAP	CPU Core
					Controller
		Controller
			Cache
			4K Byte		General DMA
					(2-CH)
	Clock Generator
		(MPLL)

		SSB	IP_TOP
Clock Generator
(UPLL)	System Bus Bridge & Arbitration /
		BDMA (2-Ch.)
Clock Generator
(PPLL)
			USB v1.1
AIN[3:0]	10bit ADC		GPIO
			Controller
	Watchdog Timer		System Timer
			(4-ch)
	Rotator		UART (2-ch)
			HP SIO
	RTC
	(Real Time Clock)		Tone Generator
			CRCON
			LFCON
			CRFIRE
			LSU I/F
			Parallel Port
			(P1284)

General Purpose I/O

Samsung Electronics

Service Manual 3-13