
HP 9000/C100 & C110
4.19 HP 9000/C100 & C110
4.19.1 Overview
The C100 and C110 are graphics workstations with the PA-7200 processors. They have a similar case
to that of the old 735 — built of interlocking modules of the I/O and MPU board.
Model numbers: both the C100 and C110 have the HP 9000/777 model number.
4.19.2 Internals
CPU
C100: PA-7200 100MHz with 256/256KB off-chip I/D L1 cache and 2KB on-chip “assist” L1
cache
C110: PA-7200 120MHz with 256/256KB off-chip I/D L1 cache and 2KB on-chip “assist” L1
cache
The “assist” cache is not really a true cache.
Chipset
LASI ASIC, which features:
– NCR 53C710 8-bit single-ended SCSI-2
– Intel 82596CA 10Mb Ethernet controller
– WD 16C522 compatible parallel
– Harmony CD/DAT quality 16-bit stereo audio
– NS 16550A compatible serial
U2 I/O adapter Runway to GSC bridge
MMC/SMC memory controllers
Wax chip
– EISA bus converter (GSC-to-EISA)
– Second RS232 serial
– HP HIL interface
GSC graphics
Intel 82C503 Ethernet transceiver, media auto-selection
CS4215 or AD1849 programmable CODECs
WD37C65C Floppy controller
NCR 53C720 16-bit Fast-Wide high-voltage differential (HVD) SCSI-2
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