Owner's manual

Technical Summary
P/I-P55SP412 Cache Options
Socketed SRAM cache options
32-pin
28-pin
28-pin
Chip
64K8
8K8or
installed
or
32K8
32K8
128KB
Tag
chip
Socket
empty
Note: 28-pin chips use the 32-in sockets
256KB
cache
32K8x8
Cache module installation
512KB
cache
64K8x8
or
1MB
cache
128K8x8
The cache modulesocket is keyed
so thatthe cache module can only
be inserted one way, preventing
incorrect orientation
4-9