2-3
Configuring the M4Pe
Jumper Settings
Table 2-1 lists jumper settings for cache configuration selections.
Jumper
Function
Setting
W1
Level 2 write-back cache (default)
Level 2 write-through cache
2-3
1-2
W4
Internal write-through cache (default)
Internal write-back cache
Not Installed
Installed
W5
128K of Level 2 cache
256K of Level 2 cache (default)
512K of Level 2 cache
Not Installed
Installed
Installed
W21
Level 2 cache Installed (default)
Level 2 cache Not Installed
Not Installed
Installed
W22
128K of Level 2 cache
256K of Level 2 cache (default)
512K of Level 2 cache
Installed
Not Installed
Not Installed
W23
128K of Level 2 cache
256K of Level 2 cache (default)
512K of Level 2 cache
Not Installed
Installed
Not Installed
W25
Level 2 cache 0 wait state (default)
Level 2 cache 1 wait state
Not Installed
Installed
W51
128K of Level 2 cache
256K of Level 2 cache (default)
512K of Level 2 cache
Not Installed
Not Installed
Installed
Table 2-1 Cache Size Selection