Datasheet

0x20
0x23
0x25
RAIL
Data(dependentonerrorcode)
6
0x21
0x22
0x24
4 3 257 6 1 0 5 4 27 1 03
6 5 4 27 1 03
ErrorCode
RAIL
ErrorCodes
000
001
010
011
100
101
110
111
Meaning
Meaning
Nullalarm
Supplydidnotstart
Sustainedovervoltagedetected
Sustainedundervoltagedetected
O
Reserved
Reserved
vervoltageglitchdetected
Undervoltageglitchdetected
NOTE: Whenerrorcode= ,thentheHours,
Minutes,Seconds,andMillisecondsfieldsarezero.
Null Alarm
Rail#(n) – 1,RAIL =0through7
Averagevoltageonrail
Averagevoltageonrail
litchvoltagelevelonrail
Glitchvoltagelevelonrail
Data
0x0000
Averagevoltageonrail
G
Reserved
Reserved
Hour
Seconds
Minutes
Milliseconds
6 5 4 27 1 03
6 5 4 27 1 036 5 4 27 1 03
UCD9081
SLVS813B –JUNE 2008–REVISED DECEMBER 2010 www.ti.com
ERROR
Error conditions are logged by the UCD9081 and are accessible to the user via reading the ERROR register.
This is a 6-byte register and it has the following format:
Faults encountered during operation post error logs as described in the section on Error Logging . This register
set is used for reading the SRAM error log. They can also be used to read the FLASH error log when the
UCD9081 is held in RESET. If the error log is empty, the ERROR register set will return all 0's (NULL ALARM)
when read.
The values in registers 0x22 through 0x25 are reset to a value of 0 during UCD9081 RESET.
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