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Sable CPU Module Specification

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70 B-Cache Control Register (BCC-CSR0, offset = 0000) ................ 214<br />

71 B-Cache Correctable Error (BCCE-CSR1, offset = 0020) .............. 215<br />

72 B-Cache Correctable Error Address (BCCEA-CSR2, offset = 0040) ...... 215<br />

73 B-Cache Uncorrectable Error (BCUE-CSR3, offset = 0060) . . .......... 216<br />

74 B-Cache Uncorrectable Error Address (BCUEA-CSR4, offset = 0080) . . . . 216<br />

75 Duplicate Tag Error Register (DTER-CSR5, offset = 00A0) . . .......... 217<br />

76 Cobra-bus Control Register (CBCTL-CSR6, offset = 00C0) . . .......... 218<br />

77 Cobra-bus Error Register (CBE-CSR7, offset = 00E0) ................ 219<br />

78 Cobra-bus Error Address Low (CBEAL-CSR8, offset = 0100) .......... 220<br />

79 Cobra-bus Error Address High (CBEAH-CSR9, offset = 0120) ......... 220<br />

80 Processor Mailbox (PMBX-CSR10, offset = 0140) . .................. 220<br />

81 Interprocessor Interrupt Request (IPIR-CSR11, offset = 0160) ......... 221<br />

82 System Interrupt Clear Register (SIC-CSR12, offset = 0180) .......... 221<br />

83 Address Lock Register (ADLK-CSR13, offset = 01A0) ................ 221<br />

84 Miss Address Register Low (MADRL-CSR14, offset = 01C0) . .......... 222<br />

85 C4 Revision Register (CRR-CSR15, offset = 01E0) .................. 222<br />

TABLES<br />

1 <strong>CPU</strong> <strong>Module</strong>s Variations . . . ................................... 7<br />

2 Latencies for Single and Double Precision Divide Instructions ......... 10<br />

3 Performance Counter 0 Input Selection . .......................... 15<br />

4 Performance Counter 1 Input Selection . .......................... 16<br />

5 ICCSR . ................................................... 19<br />

6 BHE,BPE Branch Prediction Selection . .......................... 20<br />

7 SL_CLR ................................................... 23<br />

8 EXC_SUM ................................................. 27<br />

9 HIRR . . ................................................... 29<br />

10 MM_CSR .................................................. 41<br />

11 Abox Control Register ........................................ 45<br />

12 ALT Mode ................................................. 46<br />

13 BIU Control Register Description ............................... 47<br />

14 DECchip 21064-A275 BIU Control Register Description .............. 50<br />

15 BC_SIZE .................................................. 53<br />

16 BC_PA_DIS ................................................ 53<br />

17 BIU_CTL Initialization Values ................................. 53<br />

18 Producer-Consumer Classes ................................... 64<br />

19 Opcode Summary (with Instruction Issue Bus) . . . .................. 69<br />

20 Required PALcode Instructions ................................. 70<br />

21 Instructions Specific to the 21064 ............................... 70<br />

22 DECchip 21064 Cache Status Register . .......................... 71<br />

23 DECchip 21064-A275 Cache Status Register ....................... 72<br />

24 BIUSTAT ................................................. 75<br />

25 Syndromes for Single-Bit Errors ................................ 78<br />

26 ......................................................... 84<br />

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