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System Memory Controller (SMC) dpe_me When dpe_me is set, the transition of the dpelog bit from false to true causes the Hawk to pulse its machine check interrupt request pin (MCHK0_) true. When dpe_me is cleared, the Hawk does not assert its MCHK0_ pin based on the dpelog bit. 3 GWDP The GWDP0-GWDP7 bits are used to invert the value that is driven onto DP0-DP7 respectively during reads to the Hawk. This allows test software to generate wrong (even) parity on selected byte lanes. For example, to create a parity error on DH24-DH31 and DP3 during Hawk reads, software should set GWDP3. Address $FEF80070 Bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Data Parity Error Address Register Name DPE_A Operation READ ONLY 0 PL Reset DPE_A DPE_A is the address of the last PPC60x data bus parity error that was logged by the Hawk. It is updated only when dpelog goes from 0 to 1. Address $FEF80078 Bit 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Data Parity Error Upper Data Register Name DPE_DH Operation READ ONLY 0 PL Reset DPE_DH DPE_DH is the value on the upper half of the PPC60x data bus at the time of the last logging of a PPC60x data bus parity error by the Hawk. It is updated only when dpelog goes from 0 to 1. 3-60 Computer Group Literature Center Web Site