
PRELIMINARY
121
A
82453KX/GX, 82452KX/GX, 82451KX/GX (MC)
2.3.27 SERRCMD—SYSTEM ERROR REPORTING COMMAND REGISTER
Address Offset:
C4–C5h
Default:
0000_0000_000x_0x0xb (x=captured at reset)
Attribute:
Read/Write
This register controls the reporting of system errors. Note that when bits[9:7] of this register are disabled, the
MC forces all ECC bits written to memory to 0. This mechanism is used to force ECC errors in the memory
array for debugging the memory error correcting/detecting circuits.
Bits
Description
15:10
Reserved.
9
450KX: Reserved.
8
450KX: Reserved.
7
450KX: Enable Memory ECC. 1=Enable. 0=Disable. This bit must be set to enable ECC on the
memory array. The memory array must be initialized before enabling memory ECC.
6
Reserved.
5
AERR# Driver Enable. 1=Enable. 0=Disable (default). This bit enables/disables reporting of parity
errors on request signals.
4
AERR# Input Enable. 1=Enable. 0=Disable. The MC captures this value from A8#.
3
BERR# Driver Enable. 1=Enable. 0=Disable (default). This enables/disables reporting of uncor-
rectable errors on the data bus or memory interface.
2
BERR# Input Enable. 1=Enable. 0=Disable. The MC captures this value from A9#.
1
BINIT# Driver Enable. 1=Enable. 0=Disable. When enabled, protocol violations are reported on
BINIT#.
0
BINIT# Input Enable. 1=Enable. 0=Disable. The MC captures this value from A10#.
450GX: Single-bit Error Correcting of Host Data Enable. 1=Enable. 0=Disable (default).
450GX: Logging Correctable Errors on the Host Data Bus Enable.1=Enable. 0=Disable
(default). When enabled, the MC logs correctable errors in data read from the host bus in the
SERRSTS Register. The MC also asserts the sideband single SBCERR#.
450GX: Logging Uncorrectable Errors on the Host Data Bus Enable. 1=Enable. 0=Disable
(default). When enabled, the MC logs uncorrectable errors in the SERRSTS Register. If BERR# is
enabled, BERR# is also be asserted. The memory array must be initialized before enabling
memory ECC.