MAX16068 datasheet(18/40 Pages) MAXIM

Part #	MAX16068

Description	6-Channel, Flash-Configurable System Manager with Nonvolatile Fault Registers

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Manufacturer	MAXIM [Maxim Integrated Products]

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18 _____________________________________________________________________________________

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)

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