Rainbow Electronics MAX16068 - Manual (Page 18)

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MAX16068
6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
Logged fault information is stored in flash registers
r200h–r208h (see Table 13). After fault information is
logged, the flash is locked and must be unlocked to
enable a new fault log to be stored. Write a ‘0’ to r8Ch[1]
to unlock the configuration flash. Fault information can
be configured to store ADC conversion results and/or
fault flags in registers. Select the critical fault configura-
tion in r6Dh[1:0]. Set r6Dh[1:0] to ‘11’ to turn off the fault
logger. All stored ADC results are 8 bits wide (MSBs of
the conversion). Autoretry/Latch Mode
The MAX16068 can be configured for one of two fault
management methods: autoretry or latch-on-fault. Set
r74h[4:3] to ‘00’ to select the latch-on-fault mode. The
device does not reinitiate monitoring until EN is toggled
or the software enable bit is toggled. See the Enable
Input (EN) section for more information on setting the
software enable bit.
Table 13. Nonvolatile Fault Log Registers
FLASH
ADDRESS
BIT RANGE DESCRIPTION
200h [7:0] Reserved
201h
[0] Fault log triggered on MON1 falling below its undervoltage threshold
[1] Fault log triggered on MON2 falling below its undervoltage threshold
[2] Fault log triggered on MON3 falling below its undervoltage threshold
[3] Fault log triggered on MON4 falling below its undervoltage threshold
[4] Fault log triggered on MON5 falling below its undervoltage threshold
[5] Fault log triggered on MON6 falling below its undervoltage threshold
[7:6] Not used
202h
[0] Fault log triggered on MON1 exceeding its overvoltage threshold
[1] Fault log triggered on MON2 exceeding its overvoltage threshold
[2] Fault log triggered on MON3 exceeding its overvoltage threshold
[3] Fault log triggered on MON4 exceeding its overvoltage threshold
[4] Fault log triggered on MON5 exceeding its overvoltage threshold
[5] Fault log triggered on MON6 exceeding its overvoltage threshold
[6] Fault log triggered on EXTFAULT
[7] Not used
203h [7:0] MON1 ADC output (8 MSBs)
204h [7:0] MON2 ADC output (8 MSBs)
205h [7:0] MON3 ADC output (8 MSBs)
206h [7:0] MON4 ADC output (8 MSBs)
207h [7:0] MON5 ADC output (8 MSBs)
208h [7:0] MON6 ADC output (8 MSBs)