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UM0434 Datasheet(PDF) 98 Page - STMicroelectronics |
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UM0434 Datasheet(HTML) 98 Page - STMicroelectronics |
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98 / 390 page  UM0434 Register model 99/391 4.18.3 Special purpose register summary PowerPC Book E and implementation-specific SPRs for the e200z3 core are listed in Table 89. All registers are 32 bits. Register bits are numbered from bit 32–63 (most significant to least significant). Shaded entries represent optional registers. An SPR can be read or written with the mfspr and mtspr instructions. In the instruction syntax, compilers should recognize the mnemonic in the table below. For details, see Chapter 4.4: Processor control registers on page 43.” Table 89. Special purpose registers Mnemonic Name SPR number Access Privileged e200z3 specific BUCSR Branch unit control and status register 1013 R/W Yes Yes CSRR0 Critical save/restore register 0 58 R/W Yes No CSRR1 Critical save/restore register 1 59 R/W Yes No CTR Count register 9 R/W No No CTXCR Context control register 560 R/W(1) Yes Yes DAC1 Data address compare 1 316 R/W Yes No DAC2 Data address compare 2 317 R/W Yes No DBCNT Debug counter register 562 R/W Yes Yes DBCR0 Debug control register 0 308 R/W Yes No DBCR1 Debug control register 1 309 R/W Yes No DBCR2 Debug control register 2 310 R/W Yes No DBCR3 Debug control register 3 561 R/W Yes Yes DBSR Debug status register 304 Read/Clear(2) Yes No DEAR Data exception address register 61 R/W Yes No DEC Decrementer 22 R/W Yes No DECAR Decrementer auto-reload 54 R/W Yes No DSRR0 Debug save/restore register 0 574 R/W Yes Yes DSRR1 Debug save/restore register 1 575 R/W Yes Yes ESR Exception syndrome register 62 R/W Yes No HID0 Hardware implementation dependent reg 0 1008 R/W Yes Yes HID1 Hardware implementation dependent reg 1 1009 R/W Yes Yes IAC1 Instruction address compare 1 312 R/W Yes No IAC2 Instruction address compare 2 313 R/W Yes No IAC3 Instruction address compare 3 314 R/W Yes No IAC4 Instruction address compare 4 315 R/W Yes No IVOR0 Interrupt vector offset register 0 400 R/W Yes No IVOR1 Interrupt vector offset register 1 401 R/W Yes No IVOR2 Interrupt vector offset register 2 402 R/W Yes No |
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