Artesyn ATCA-7480 Installation and Use (February 2015) - Manual (Page 133)

Maps and Registers
ATCA-7480 Installation and Use (6806800T17A) 133
The table below shows the failing cause for the ME power failure.
5.1.11.2 Payload Power Failure Registers
When a payload power failure occurs, the red power failure LED is switched ON (signal
PWR_FAIL_ is driven low).
3 ME_PWR Timeout. No ASW power good after 45ms
4 ME_WAIT ASW power good lost
5 ME_WAIT_OFF ASW power good lost
Other - These values will never occur.
Table 5-46 ME Power Failure Cause Register
Address Offset: 0x09
Bit Description Default Access
0 Active Sleep Well (ASW) power failure:
0: No ASW power failure. ASW power is as expected.
1: ASW power failure. ASW power has different value
as expected.
Note: Only valid when ME Failure (Bit 7) of ME Power
Failure State Register (
Table 5-47 ) is set.
PWR_GOOD:0 IPMC: r
7:1 Reserved 0 IPMC: r
Table 5-45 ME Power Failure States (continued)
State
Coding State
Name
Description