Xerox WorkCentre 3210 Service Manual page 76

Theory of Operation
2-20
Controller Part
Performs electro-photography
Memory control (DDR2 SDRAM, NOR FLASH, Serial FLASH, EEPROM)
Handles signal between each driver and PC interface
Clock generation
Engine Part
Motor Control (BDLC, Stepping)
ADF Motor Interface (ADF reserved)
LSU (2 beam LVDS Type) control
Fuser control (On/Off)
I/O signal handling (Sensor/Clutch signal)
OPE/ CIS / MODEM / SCF control
CRUM control
Fan control
Asic (CHRUS3)
Description
Package
Voltage
CPU Core
Operating Frequency
DDRC
ROMC
IOC
DMAC
HPVC
WorkCentre 3210/3220 Multifunction Printer Service Manual
Specifications
412 PBGA (Total pad number: 412 [each])
Core Voltage: 1.0 V
I/O Pad Voltage: 3.3 V
ARM926EJS (16KB I-cache, 16 KB D-cache)
400 MHz
DDR 1, 2 Combo
32 Bits Data Width (internal), 16 Bits Data Width
(external)
133 MHz DRAM interface
16 to 128 MB Array (up to 512 MB total)
Supports 4 AHB Slave Ports for individual memory
access
Supports 4 bank DDR1 SDRAM and 4 & 8 bank DDR2
SDRAM
Supports up to 4 DRAM ranks (chip select output)
2 channel NOR Flash Controller
Supports 4 channel external I/O device, 2 channel DMA
I/O
Contains 3 channels
Supports 32 bits AHB Master I/F
A4 2400 dpi, A3 1200 dpi addressable
Supports 200, 300, 400, 600 dpi
Supports 4 channels single/dual beam