EMC2302 datasheet(31/70 Pages) MICROCHIP

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 2021 Microchip Technology Inc.

DS20006532A-page 31

EMC2301/2/3/5

6.5

Fan Spin Status Register

The Fan Spin Status register indicates which fan driver

has failed to spin-up (see Section 4.8 “Spin Up Rou-

tine”). All bits are cleared upon a read if the Error

condition has been removed.

bit 3

F4STL: Fan 4 Stall Status

1 = Fan 4 tachometer count has exceeded maximum valid TACH count, indicating stall.

0 = Fan 4 Stall has not been detected.

bit 2

F3STL: Fan 3 Stall Status

1 = Fan 3 tachometer count has exceeded maximum valid TACH count, indicating stall.

0 = Fan 3 Stall has not been detected.

bit 1

F2STL: Fan 2 Stall Status

1 = Fan 2 tachometer count has exceeded maximum valid TACH count, indicating stall.

0 = Fan 2 Stall has not been detected.

bit 0

F1STL: Fan 1 Stall Status

1 = Fan 1 tachometer count has exceeded maximum valid TACH count, indicating stall.

0 = Fan 1 Stall has not been detected.

FAN STALL STATUS - FAN STALL STATUS REGISTER (ADDRESS 25H)

FAN SPIN STATUS - FAN SPIN-UP STATUS REGISTER (ADDRESS 26H)

U-0

RC-0

—

F5SPIN

F4SPIN

F3SPIN

F2SPIN

F1SPIN

bit 7

bit 0

Legend:

RC = Read-then-clear 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 7-5

Unimplemented bits, read as ‘0’.

bit 4

F5SPIN: Fan 5 Spin-Up Status

1 = Fan 5 spin-up routine failed to start the fan.

0 = Fan 5 spin-up routine successful.

bit 3

F4SPIN: Fan 4 Spin-Up Status

1 = Fan 4 spin-up routine failed to start the fan.

0 = Fan 4 spin-up routine successful.

bit 2

F3SPIN: Fan 3 Spin-Up Status

1 = Fan 3 spin-up routine failed to start the fan.

0 = Fan 3 spin-up routine successful.

bit 1

F2SPIN: Fan 2 Spin-Up Status

1 = Fan 2 spin-up routine failed to start the fan.

0 = Fan 2 spin-up routine successful.

bit 0

F1SPIN: Fan 1 Spin-Up Status

1 = Fan 1 spin-up routine failed to start the fan.

0 = Fan 1 spin-up routine successful.

EMC2302 Datasheet(PDF) 31 Page - Microchip Technology

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