Detailed Logout Frame Field Descriptions

The following descriptions of the fields within the logout frames provide additional clarification of their usage.

Frame Size

Provides the physical size of the entire logout error frame in bytes

Second Flags

If bit <63> is set to 1 a retryable error has occurred. If bit <63> set to 0 a non-retryable error typically fatal in nature.

Second Error is <62> flag and if bit <62> is set to 1 a second error has occurred. If is set to 0 only one error has occurred.

EV6 Offset

Offset from the base address of the frame to the start of Alpha 21264 processor internal processor registers error content information.

System Offset

Offset from the base address of the frame to the start of the System specific diagnostic, control, status, or error content information begins

MCHK Code

Indicates the specific type of correctable or uncorrectable machine check error which has occurred.

MCHK Frame Revision

The revision level of the logout frame.

EV6 xxx xxx xxx

Specifically refers to a specified Alpha 21264 processor internal processor control, diagnostic, error, or status register. Refer to for a complete description and layout of the processor registers contained in the logout frame.

Software Error

Software flags used to signal system error handler(s) execution processing and Summary Flags control.

CChip, PChip

Specifically refers to a Tsunami/Typhoon Core Logic Chip Set system diagnostic, control, status, or error registers

TIG

Specifically refers to a Timing, Interrupt and General bus (TIG) Controller Chip system diagnostic, control, status, or error registers

Xxx

Reserved

Yy

Indicates reserved for additional logout frame error state capture.