IBM PowerPC 405GP

the POBO_BESRm[FLKn] and POBO_BESRm[ALKn] fields that are set. Writing ° to a lock field does
not affect the
field.
31
Figure 2-6. Bridge Error Status Register 0 (POBO_BESRO)
0:1 PTEO PLB Timeout Error Status Master 0
Master 0 is the processor core
ICU.
00 No master 0 error occurred
01 Master 0 timeout error occurred
10 Master 0
slave error occurred
11 Reserved
2
RIWO Read Write Status Master 0
o Master 0 error operation is a read
1 Master 0 error operation is a write
3
FLKO POBO_BESRO Field Lock Master 0
o Master 0 POBO_BESRO field is unlocked
1 Master 0 POBO_BESRO field is locked
4
ALKO POBO_BEAR Address Lock Master 0
o Master 0 POBO_BEAR address is
unlocked
1 Master 0 POBO_BEAR address is locked
5:6
PTE1 PLB Timeout Error Status Master 1 Master 1 is the processor core DCU.
00 No master 1 error occurred
01 Master 1 timeout error occurred
10 Master 1
slave error occurred
11 Reserved
7
RIW1 ReadlWrite Status Master 1
o Master 1 error operation is a read
1 Master 1 error operation is a write
8
FLK1 POBO_BESRO Field Lock Master 1
o Master 1· POBO_BESRO field is unlocked
1 Master 1 POBO_BESRO field is locked
9
ALK1 POBO_BEAR Address Lock Master 1
o Master 1 POBO_BEAR address is
unlocked
1 Master 1 POBO_BEAR address is locked
10:11
PTE2 PLB Timeout Error
Status Master 2 Master 2 is the external master.
00 No master 2 error occurred
01 Master 2 timeout error occurred
10 Master 2
slave error occurred
11 Reserved
12
RlW2 ReadlWrite
Status Master 2
o Master 2 error operation is a read
1 Master 2 error operation is a write
Preliminary
On-Chip Buses
2-9