MCP8021 datasheet(40/66 Pages) MICROCHIP

40 / 66 page

MCP8021/2

DS20006265D-page 40

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STAT1: STATUS REGISTER 1

U-0

R-0

U-0

R-0

—

XOCPF

XUVLOF

—VREGUVF

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-4

Unimplemented: Read as ‘0’

bit 3

XOCPF: External MOSFET Overcurrent Protection Fault

Only Valid when EXTSC (CFG0[2]) = 0.

1 = External MOSFET VDS > EXTOC[1:0] (CFG0[1:0]) value

0 = External MOSFET VDS < EXTOC[1:0] (CFG0[1:0]) value

bit 2

XUVLOF: External MOSFET Gate Drive Undervoltage Fault

Only Valid when EXTUVLO (CFG0[3]) = 0.

1 = HSx output voltage < VDUVLO

0 = HSx output voltage > VDUVLO

bit 1

Unimplemented: Read as ‘0’

bit 0

VREGUVF: VREG LDO Undervoltage Fault

1 = VREG LDO output voltage < 88% of target VREG

0 = VREG LDO output voltage > 92% of target VREG

REV_ID: HARDWARE REVISION ID

U-0

R-0/1

—

REVID3

REVID2

REVID1

REVID0

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-4

Unimplemented: Read as ‘0’

bit 3-0

REVID[3:0]: Device Revision

0111 = Device Revision D1

1000 = Device Revision D2

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