UCS2112 datasheet(44/64 Pages) MICROCHIP

44 / 64 page

UCS2112

DS20005424B-page 44

 2015 Microchip Technology Inc.

GENERAL STATUS 2 REGISTER (ADDRESS 10H)

R/C-0

U-x

R-0

R/C-0

R-0

RATION2

—

CC_MODE2 PWR_EN2_CON LOW_CUR2

REM2

ADET2

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit

C = Clear on Read

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

RATION2:

Indicates the state of Port 2 Rationing. This bit is cleared when read, or cleared automatically

when the RATION_RST2 bit is set or the RATION_EN2 bit is cleared.

= Port 2 has delivered the programmed mAh of current

= Port 2 has not delivered the programmed mAh of current

bit 6-5

Unimplemented

bit 4

CC_MODE2:

Indicates whether Port 2 has entered CC mode.

= Port 2 is in CC mode

= Port 2 not in CC mode

bit 3

PWR_EN2_CON:

Reflects the PWR_EN control state. This bit is set and cleared automatically with the

logic expression (PWR_EN2 pin OR. PWR_EN2S).

= Port 2 Power Enable is set

= Port 2 Power Enable is clear

bit 2

LOW_CUR2:

Indicates if the portable device charge current is below the 13.3 mA threshold on the

VBUS2 and may be finished charging. This bit is cleared when read and will cause the ALERT#2 pin to

be asserted if the ALERT_LINK2 bit is set.

= Port 2 charging current less than threshold

= Port 2 charging current above threshold

bit 1

REM2:

Removal Detection Port2 - Indicates if a Removal Detection event has occurred and there is no

longer a portable device present on the VBUS1 pin. This bit is cleared when read and will not cause the

ALERT#2 pin to be asserted.

= Removal Detection occurred

= No Removal Detection

bit 0

ADET2:

Attach Detection Port2 - indicates that an Attach Detection event has occurred on the VBUS2

pins and there is a new portable device present. Asserts the A_DET#2 pin. This bit is set and cleared

as the A_DET#2 pin changes.

= Attach Detection event has occurred. A_DET#2 pin asserted

= No Attach Detection event

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