Epson Stylus CX3100 Service Manual page 16

EPSON Stylus CX3100/3200
Table 2-1. Functions of Major Elements - C497MAIN
Location Name
IC1 C90A20**
MBM29LV800BC-PFTN
IC5
or the equivalent
IC2 E05C08**
IC4 RTC9822
IC7 A6615
IC11 LB11847
IC6 E09A29LA
IC8 K4S641632D
IC9 K4S641632D
Operating Principles
Description
CPU
• Built-in RAM 10kB,
Built-in Flash ROM 256KB
• 144-pin, LQFP,
Driving frequency: 48MHz
• Control, image processing C90A20
64Mbit Flash ROM
• Stores firmware
ASIC
• Motor control
• Head control
• Panel sensor input and output control
• USB I/F
• EEPROM
• Storage of default setting and backup of
various parameters
• Reset function
• Timer function
CR Motor driver
Scanner motor driver
Head drive control IC
• Supplies COMMON+42 V
16Mbit SDRAM
• System memory
16Mbit SDRAM
• Work area for copy functions
Overview
Revision A
16