Item Information
The UN331C controls the system and executes stored programs that perform call processing activity and maintenance. The UN331C is a RISC that is designed around a MIPS R3000A CPU that operates at 33 MHz. It employs 32-bit address and data buses to obtain and execute instructions at a rate approaching one instruction per clock cycle. The 256-Kb instruction cache with burst-mode refill and 256-Kb data cache are key to the performance of the processor. A read and write buffer chip tailors the UN331C to the call processing environment.
Features
- 512 Kbytes of ROM for the monitor
- Counters and timers
- UARTs
- Control, status and error registers
- Logic for bus arbitration and the Bus Time-Out feature
Included
Compatibility
Grade A Refurbished
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All refurbished items are restored to full functionality, and their grades reflect only cosmetic condition. Lower-grade products may have more visible blemishes but are rigorously tested and cleaned to ensure identical performance and warranty coverage.
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