Dell 1815DN service manual System Configurations, CPU Part

System Outline

44. System Outline

This document is the product specification for Dell 1815dn. Dell 1815dn is a Multi-Function Peripheral (MFP) integrating a plain fax, a B/W laser printer, a color flatbed scanner, and a B/W copier. Dell 1815dn is devel- oped for small workgroup and personal of fice customers. The main product concept is ° ∞ High Speed and High Quality.°± This model has 27ppm print-speed, 3 sec transmission-speed for fax, 33.6kbps fax-transfer rate, optical 600 dpi color scanner, and 1200 dpi printer.

Dell 1815dn is developed to meet standard approvals of FCC Part 15 Class B, FCC Part 68, IC 60950, and cUL for the US and Canada. Other markets covered are Europe, Latin America and Emerging Markets. Agency Certifications will be attained to enable launch in all target markets

4.1 System Configurations

Dell 1815dn is made up of the Main Control part, Operation Panel part, Scanner part, Line interface part and Power part. Each Part is a separate Module which focuses on common and standard design of

different kind of products. Main control part adopting Fax & LBP Printer exclusive Controller is composed of 1 CPU and 1 Board. Scanner part is composed of ADF and Platen and is connected with Main by Harness. Line Interface part is designed to apply TBR21 standard (Domestic, Europe, etc.)

4.1.1 CPU Part

1)CPU : ARM920T , which is exclusive controller to execute Printer & F AX Function and to execute opera- tion block by flash memory within system program, and to control whole system.

Main function block

Completely Integrated System for Embedded Applications

PVC

-Dual / Single Beam, - LVDS Pad (VDO, HSYNC), - Support A3 1200dpi, multi-pass color.

HPVC

-Dual / Single Beam, - LVDS Pad (VDO, HSYNC), - Support A4 600dpi, multi-pass color.

DMA

-6 Channels (if not use CIP4e, 4ch is available for external DMA.

if CIP4E used (a4 DMA channel use), 2ch available for external DMA)

Operation Frequency : CPU Core -> over 300MHz, System Bus -> 100MHz Operation Voltage : Core Voltage -> 1.2V, I/O Pad Voltage -> 3.3V, RTC Voltage -> 3V

2)Flash Memory : Record System Program, and download System Program by PC INTERF ACE. FAX for Journal List, and Memory for One Touch Dial, Speed Dial List.

-size : 16M Byte (NOR Flash)

-Access Time: 90ns (Max)

-Page Access Time: 25ns (Max)

Service Manual 4-1