BOARD STRUCTURE
10 August, 2001
1-20
1.
CPU
. QED RM5231. Clock frequency: 200 MHz.
2.
SIMAC ASIC
. This is a dedicated chip developed for use with GW architecture.
The CPU and memory I/F employ a 100 MHz bus (32 bit). These components
perform CPU and I/F control and also control all of the following functions:
memory, local bus, interrupts, PCI bus, video data, HDD, network, operation
panel, IEEE1284, and image processing.
3.
SDRAM
. This is a 32 MB RAM chip, expandable with a 32 MB or 64 MB
SDRAM.
4.
System Flash ROM
. 8 MB Flash ROM for the system OS and copier
application.
5.
Flash ROM DIMM Slots
. Two slots are provided for two ROM DIMMs (4 MB or
8MB). Expansion slots provided for the optional printer, scanner, facsimile, and
PostScript 3 applications.
6.
NVRAM
. 32 KB of NVRAM are provided for the system. The NVRAM stores
many settings, including OS system log information, copier calendar, current
system settings, user accounts (max. 100) and all settings for the fax, printer,
scanner, and network. The NVRAM also has an RTC (Real Time Clock) for
time management.
NOTE:
Optional NVRAM, which can store up to 400 user accounts, can be
installed on the controller.
7.
HDD.
A 2.5" HDD (more than 6 GB) can be connected using an IDE I/F. The
hard disk is partitioned as shown below.
Partition
Size
Function
Power OFF
Comment
File System 1
500MB
Downloaded fonts,
forms.
Remains
File System 2
200MB
Job spooling area.
Erased
File System 3
1500MB
Work data area
Remains
Used for document
server application.
Image TMP
900MB
Collation, sample
print, locked print.
Erased
Image LS*
1
1640MB
Document server,
local storage archive
Remains
Commonly used area
for applications. Stores
copy, printer, fax, and
scanner data.
Storage capacity:
About 9000 pages
(3,000 files)
Image Area
Management
20MB
Stores image area
information
Remains
Job Log
10MB
Job log.
Remains
Total
4.8GB
Remains
*1
When an application uses an image page, first it uses the Image LS area. If
this area is in use and not available, then it uses the Image TMP area.