Motorola MPC823e - Page 210

Data Cache
10-6 MPC823e REFERENCE MANUAL MOTOROLA
DATA CACHE
10
Bits 3, 8, and 9—Reserved
These bits are reserved and must be set to 0.
CMD—Command
The following commands can be written to the CMD field to control and configure the data
cache. The machine must be in privilege mode (MSR
PR
=1).
0000 = Reserved.
0010 = Data Cache ENABLE .
0100 = Data Cache
DISABLE .
0110 = LOCK LINE .
1000 = UNLOCK LINE .
1010 = UNLOCK ALL .
1100 = INVALIDATE ALL .
1110 = FLUSH Data Cache LINE .
0001 = SET FORCE WRITETHROUGH MODE .
0011 = CLEAR FORCE WRITETHROUGH MODE .
0101 = SET LITTLE-ENDIAN SWAP MODE .
0111 = CLEAR LITTLE-ENDIAN SWAP MODE .
Others = Reserved.
CCER1—Data Cache Error Type 1
This field is sticky and set by the hardware. It is read-only and cleared when read.
0 = No Error.
1 = Error.
CCER2—Data Cache Error Type 2
This field is sticky and set by the hardware. It is read-only and cleared when read.
0 = No Error.
1 = Error.
CCER3—Data Cache Error Type 3
This field is sticky and set by the hardware. It is read-only and cleared when read.
0 = No Error.
1 = Error.
Bits 13–31—Reserved
These bits are reserved and must be set to 0.