User’s Manual
IBM PowerPC 750GX and 750GL RISC Microprocessor
11.1
Performance-Monitor Interrupt ............................................................................................
........ 349
11.2
Special-Purpose Registers Used by Performance Monitor .........................................................
350
11.2.1 Performance-Monitor Registers .........................................................................................
351
11.2.1.1 Monitor Mode Control Register 0 (MMCR0) ...............................................................
11.2.1.2 User Monitor Mode Control Register 0 (UMMCR0) ....................................................
11.2.1.3 Monitor Mode Control Register 1 (MMCR1) ...............................................................
11.2.1.4 User Monitor Mode Control Register 1 (UMMCR1) ....................................................
11.2.1.5 Performance-Monitor Counter Registers (PMCn) ......................................................
11.2.1.6 User Performance-Monitor Counter Registers (UPMC1–UPMC4) ............................
354
11.2.1.7 Sampled Instruction Address Register (SIA) ..............................................................
355
11.2.1.8 User Sampled Instruction Address Register (USIA) ...................................................
11.3
Event Counting ............................................................................................................................
11.4
Event Selection ...........................................................................................................................
356
11.5
Notes ...........................................................................................................................................
11.6
Debug Support ............................................................................................................................
357
11.6.1 Overview ............................................................................................................................
11.6.2 Data-Address Breakpoint ................................................................................................
.. 357
11.7
JTAG/COP Functions .......................................................................................................
........... 357
11.7.1 Introduction ........................................................................................................................
11.7.2 Processor Resources Available through JTAG/COP Serial Interface ...............................
11.8
Resets .........................................................................................................................................
359
11.8.1 Hard Reset .............................................................................................................
........... 359
11.8.2 Soft Reset ..........................................................................................................................
11.8.3 Reset Sequence .........................................................................................................
....... 360
11.9
Checkstops .................................................................................................................................
361
11.9.1 Checkstop Sources ......................................................................................................
..... 361
11.9.2 Checkstop Control Bits .................................................................................................
11.9.3 Open-Collector-Driver States during Checkstop ...............................................................
362
11.9.4 Vacancy Slot Application ...............................................................................................
.... 362
11.10 750GX Parity .............................................................................................................................
363
11.10.1 Parity Control and Status .............................................................................................
.... 364
11.10.2 Enabling Parity Error Detection .......................................................................................
364
11.10.3 Parity Errors .........................................................................................................
............ 364
365
........................................................................................................................
.... 369
377
750gx_umTOC.fm.(1.2)
March 27, 2006
Page 11 of 377