IBM PowerPC 750GX User Manual page 370

User's Manual
IBM PowerPC 750GX and 750GL RISC Microprocessor
L2 interface
cache global invalidation
,
cache initialization 329
,
cache testing 333
,
dcbi 328
,
eieio 328
,
operation 323
,
stwcx. execution 328
,
sync 328
load/store operations, processor initiated
,
miss 222
operations
cache block push operations
data cache transactions
instruction cache block fill
snoop response to bus transactions
,
PLRU replacement 137
,
stwcx. execution 328
Changed (C) bit maintenance recording
Checkstop
, ,
signal 169 271
,
state 169
,
CI (cache inhibit) signal 260
CKSTP_IN/CKSTP_OUT(checkstop input/output) sig-
, ,
nals 169 271
,
Classes of instructions 87
,
Clean block operation 143
Clock signals
,
PLL_CFGn 277
,
SYSCLK 277
Completion
completion unit resource requirements
,
considerations 224
,
definition 209
,
Context synchronization 90
,
Conventions 209
,
COP/scan interface 319
,
Copy-back mode 235
CR (condition register)
,
CR logical instructions
,
CR, description 59
,
CTR register 59
D
DABR (data address breakpoint register)
DAR (data address register)
Data bus
,
arbitration signals 264
,
bus arbitration 301
,
data tenure 285
, ,
data transfer 266 303
data transfer termination
Data cache
,
configuration 123
Index
Page 370 of 377
,
329
,
130
,
328
,
140
,
139
,
143
, ,
188 198
,
237
107
,
62
,
61
,
285
, ,
268 303
DCFI, DCE, DLOCK bits
,
organization 123
Data organization in memory
Data transfers
,
alignment 296
,
burst ordering 295
eciwx and ecowx instructions, alignment
,
operand conventions 82
,
signals 303
DBB (data bus busy) signal
DBG (data bus grant) signal
DBWO (data bus write only) signal
DEC (decrementer register)
,
Decrementer exception 171
,
Defined instruction class 87
DHn/DLn (data bus) signals
Dispatch
,
considerations 224
dispatch unit resource requirements
,
DRTRY (data retry) signal
,
DSI exception 169
,
DSISR register 61
,
DTLB organization 200
Dynamic branch prediction
E
EAR (external access register)
Effective address calculation
,
address translation 181
,
branches 90
, ,
loads and stores 90 99
eieio, enforce in-order execution of I/O
EMI protocol, enforcing memory coherency
,
Error termination 307
,
Event counting 355
,
Event selection 356
Exceptions
,
alignment exception 170
,
decrementer exception
,
definitions 162
,
DSI exception 169
enabling and disabling exceptions
,
exception classes 152
,
exception prefix (IP) bit
,
exception priorities 153
,
exception processing 156
,
external interrupt 169
,
FP assist exception 171
FP unavailable exception
instruction-related exceptions
,
ISI exception 169
machine check exception
performance monitor interrupt
,
program exception 170
,
132
,
82
,
300
, ,
286 302
, ,
264 285
, , ,
286 303 320
,
62
,
266
,
237
, ,
269 303 306
,
216
,
62
,
103
,
115
,
308
171
,
160
163
,
160
,
171
,
91
,
167
,
172
750gx_umIX.fm.(1.2)
March 27, 2006