UCS2113 datasheet(49/62 Pages) MICROCHIP

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DS20005680B-page 49

UCS2113

RATION CONFIGURATION REGISTER (ADDRESS 22H)

R/W-0

R/W-1

R/W-0

R/W-1

RTN_EN2

RTN_RST2

RTN_BEH2<1:0>

RTN_EN1

RTN_RST1

RTN_BEH1<1:0>

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

RTN_EN2: Charge Ration Enable Port 2 - Enables Charge Rationing for Port 2.

1 = Charge Rationing enabled

0 = Charge Rationing disabled. The Total Accumulated Charge registers for Port 2 will be cleared to

00_00h and current data will no longer be accumulated. If the Total Accumulated Charge registers

have already reached the Charge Rationing Threshold, the applied response will be removed as if

the charge rationing had been reset. This will also clear the RATION2 status bit (if set).

bit 6

RTN_RST2: Port 2 Ration Reset - Resets the charge rationing functionality for Port 2.

1 = Total Accumulated Charge registers are reset to 00_00h. In addition, when this bit is set, the

RATION2 status bit will be cleared and, if there are no other errors or active indicators, the

ALERT#2 pin will be released.

0 = Normal operation. This bit must be cleared to enable charge rationing

bit 5-4

RTN_BEH2<1:0>: Ration Behavior Control bits - Controls how the UCS2113 responds when the Ration

Threshold has been exceeded (as shown in Table 6-2).

00 = Report

01 = Report and Disconnect

10 = Disconnect and SLEEP

11 = Ignore

bit 3

RTN_EN1: Charge Ration Enable Port 1 - Enables Charge Rationing for Port 1.

1 = Charge Rationing enabled

0 = Charge Rationing disabled. The Total Accumulated Charge registers for Port 1 will be cleared to

00_00h and current data will no longer be accumulated. If the Total Accumulated Charge registers

have already reached the Charge Rationing Threshold, the applied response will be removed as if

the charge rationing had been reset. This will also clear the RATION1 status bit (if set).

bit 2

RTN_RST1: Port 1 Ration Reset - Resets the charge rationing functionality for Port 1.

1 = Total Accumulated Charge registers are reset to 00_00h. In addition, when this bit is set, the

RATION1 status bit will be cleared and, if there are no other errors or active indicators, the

ALERT#1 pin will be released.

0 = Normal operation. This bit must be cleared to enable charge rationing.

bit 1-0

RTN_BEH1<1:0>: Ration Behavior Control bits - Controls how the UCS2113 responds when the Ration

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