Freescale Semiconductor PowerPC e500 Core - Machine Check Syndrome Register (MCSR)

Register Model
PowerPC e500 Core Family Reference Manual, Rev. 1
Freescale Semiconductor 2-23
2.7.2.4 Machine Check Syndrome Register (MCSR)
When the core complex takes a machine check interrupt, it updates MCSR to differentiate between
machine check conditions. The MCSR indicates whether a machine check condition is
recoverable. When a condition bit is set, the core complex asserts MCP_OUT for system
information. ABIST status is logged in MCSR[48–54]. These bits do not initiate machine check
(or any other exception). An ABIST bit being set indicates an error being detected in the
corresponding module. The MCSR is shown in Figure 2-14.
Table 2-10 describes the MCSR fields.
SPR 572 Access: Supervisor-only
32 33 34 35 36 39
R
MCP ICPERR DCP_PERR DCPERR —
W
Reset All zeros
40 47
R
—
W
Reset All zeros
48 55
R
—
W
Reset All zeros
56 57 58 59 60 61 62 63
R
BUS_IAERR BUS_RAERR BUS_WAERR BUS_IBERR BUS_RBERR BUS_WBERR BUS_IPERR BUS_RPERR
W
Reset All zeros
Figure 2-14. Machine Check Syndrome Register (MCSR)
Table 2-10. MCSR Field Descriptions
Bit Name Description
32 MCP Machine check input to core
mcp
33 ICPERR Instruction cache parity error
34 DCP_PERR Data cache push parity error
35 DCPERR Data cache parity error
36–55 — Reserved, should be cleared.
56 BUS_IAERR Bus instruction address error
57 BUS_RAERR Bus read address error
58 BUS_WAERR Bus write address error