HP Model 745 - VME Workstation, Руководство пользователя, Страница: 26 / 220

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Product Description
Board Computer Configurations
Board Computer Configurations
The Model 745 Industrial Controller incorporates the Model 744 single-
board compter (SBC) as its processor. The Model 744 is a high-performance
Precision Architecture board computer based on the Hewlett-Packard PA-
RISC 7300LC technology. It contains the following key features:
• Model type:
Model 744/132L,
Primary internal cache - 128 KB: 64 KB instruction, 64KB data
Model 744/165L,
Primary internal cache - 128 KB: 64 KB instruction, 64KB data
Secondary external cache - 512KB
• Clocks
Battery-backed real-time clock
Interval timers (One 32 bit, Two16 bit)
Watchdog timer
• Main Memory
Up to four RAM cards may be installed.
When mixing memory card capacities that include 128MB or
256MB cards, the 128MB and 256 MB card(s) must be installed
into the lowest memory slots before adding cards of other capaci-
ties.