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IBM3206K0424
Preliminary
IBM Processor for Network Resources
pnr25.chapt05.01
August 14, 2000
Processor Core (PCORE)
Page 453 of 676
Cache Control Registers
Register
Name
SPR
Number
Source
POR value
Notes
dccr
1018
401
X
’
00 00 00 00
’
dlcr
917
COBRA X
’
00 00 00 00
’
Bits 0-15 correspond to target tags 0-15, enabling auto data cache line locking
dtwf
919
COBRA X
’
00 00 00 00
’
Bits 0-15 correspond to target tags 0-15, enabling target word first data cache fills
iccr
1019
401
X
’
00 00 00 00
’
ilcr
916
COBRA X
’
00 00 00 00
’
Bits 0-15 correspond to target tags 0-15, enabling auto instruction cache line lock-
ing
itwf
918
COBRA X
’
00 00 00 00
’
Bits 0-15 correspond to target tags 0-15, enabling target word first instruction cache
fills
cdcbr
983
401
Not implemented
dcwr
954
401
Not implemented
icdbdr
979
401
Not implemented
Translation Registers
Register
Name
SPR
Number
Source
POR value
Notes
sdr1
25
603
X
’
00 00 00 00
’
Not Supported - translation disabled this pass
sgr
53
401
X
’
00 00 00 00
’
Has no affect this pass. All storage is non-guarded.
sler
55
401
Not Supported - writes ignored, reads as
’
0
’
stt0
912
COBRA X'00 00 00 00'
When IR=0 or DR=0, these registers are used to assign target tags to instruction or
data memory accesses. The mapping is stt0(0:3) = 0x00000000 - 0x07FFFFFF
through stt3(28:31) = 0xF8000000 - 0xFFFFFFFF.
stt1
913
COBRA X'00 00 00 00'
stt2
914
COBRA X'00 00 00 00'
stt3
915
COBRA X'00 00 00 00'
sr0-15
NA
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat0u
536
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat0l
537
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat1u
538
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat1l
539
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat2u
540
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat2l
541
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat3u
542
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat3l
543
603
X'00 00 00 00'
Not Supported - translation disabled this pass
dbat4u
568
COBRA X'00 00 00 00'
Not Supported - translation disabled this pass
dbat4l
569
COBRA X'00 00 00 00'
Not Supported - translation disabled this pass
dbat5u
570
COBRA X'00 00 00 00'
Not Supported - translation disabled this pass
dbat5l
571
COBRA X'00 00 00 00'
Not Supported - translation disabled this pass