Ricoh U-C1 B051 - Page 273

26 July 2002 BOARD STRUCTURE
6-13
Detailed
Descriptions
1. CPU:
PMC RM526A-250 MHz
2. CELLO ASIC:
This is a dedicated chip developed for use with GW architecture. It controls the
following functions: memory, local bus, interrupts, PCI bus, video data, HDD,
network, operation panel, IEEE1284, and image processing.
3. Flash ROM:
8MB Flash ROM for the system program
4. SDRAM (on-board):
128 MB SDRAM, expandable with 128 MB or 256 MB optional DRAM.
5. Flash ROM DIMM Slots:
Three slots are provided for three ROM DIMMs. Expansion slots provided for
the optional printer, scanner, facsimile, and PostScript 3 applications.
6. NVRAM:
Stores the engine and controller settings
7. PCI Interface:
For installing the FCU board, IEEE1394, and wireless LAN. The IEEE1394, and
wireless LAN cannot both be installed on the same machine at the same time.
8. HDD:
Used for the document server. Also used for collation, locked print, sample
print, form overlay, and font storage. The hard disk is partitioned as shown
below.
Partition 40GB HDD Function Comment
Image Local
Storage
16,500 MB Document server
Remains stored even after cycling
power off/on.
File System 1 500 MB
Downloaded fonts,
forms.
Remains stored even after cycling
power off/on.
File System 2 1,000 MB Job spooling area Erased after power off.
File System 3 2,000 MB Work data area
Remains stored even after cycling
power off/on.
7,486 MB
Commonly used area for
applications
Erased after power off.
7,200 MB Copier application Erased after power off.
3,440 MB Printer application Erased after power off.
Image TMP
1,000 MB Scanner application Erased after power off.
Job Log 10 MB Job log
Remains stored even after cycling
power off/on.
Scanner 1024 MB For mail Erased after power off.
Others 840 MB Debug Erased after power off.
Total 4100 MB