Specifications

17 January 1997 – Subject to Change
Glossary and Acronyms E–3
EBSDK
Evaluation board software design kit.
ECC
Error correction code. A 16-bit ECC is passed on the 21164 microprocessor’s
data_check lines for each 128-bit data transfer.
flash ROM
Flash read-only memory. On the AlphaPC 164, a 1MB, nonvolatile, writable ROM.
Icache
Instruction cache. An 8KB L1 cache reserved for instructions on the 21164
microprocessor chip.
IPR
Internal processor register.
ISA
Industry Standard Architecture. An 8-bit or 16-bit interface for interconnecting data
storage, data processing, and peripheral control devices in a closely-coupled
configuration.
local bus
A bus that is in close proximity to the CPU and shares its speed. PCI is a local bus.
PAL
Programmable array logic.
PCI
Peripheral component interconnect. The 64-bit and 32-bit local bus developed by
Intel.