UCS2113 datasheet(34/62 Pages) MICROCHIP

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UCS2113

DS20005680B-page 34

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8.2

Status Registers

The Status registers store bits that indicate the state of

the ALERT# pins and if the ports operate in Constant

Current Mode.

PORT STATUS REGISTER (ADDRESS 02H)

R-0

U-0

R-x

ALERT2_PIN

ALERT1_PIN CC_MODE2

CC_MODE1

—

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

ALERT2_PIN: Reflects the status of the ALERT#2 pin. This bit is set and cleared as the ALERT#2 pin

changes states.

1 = ALERT#2 Pin asserted (logic low)

0 = ALERT#2 Pin not asserted

bit 6

ALERT1_PIN: Reflects the status of the ALERT#1 pin. This bit is set and cleared as the ALERT#1 pin

changes states.

1 = ALERT#1 Pin asserted (logic low)

0 = ALERT#1 Pin not asserted

bit 5

CC_MODE2: Port 2 Constant Current Mode State

1 = Port 2 in Constant Current mode

0 = Port 2 operating normally

bit 4

CC_MODE1: Port 1 Constant Current Mode State

1 = Port 1 in Constant Current mode

0 = Port 1 operating normally

bit 3-0

Unimplemented

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