RT9451

23

DS9451-00

September 2013

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is a registered trademark of Richtek Technology Corporation.

STATUS Register B (STATUS_B)

Address - 0x07h

Data Bit

D7

D6

D5

D4

D3

D2

D1

D0

Field Name

RESET

Not used

Not used

Not used

Not used

DPDM_D

DPDM_R

OTG

Read/Write

W

R

R

R

R

R

R

R

Reset Value

0

0

0

0

0

0

0

1

Field Name

Bit Definition

(1)

RESET

Reset

0 – No effect

1 – Reset all parameters to default values

Note : Read always returns “0”

Not used

N/A

Not used

N/A

Not used

N/A

Not used

N/A

DPDM_D

D+/D

− detection done bit

0 – DPDM detection in progress or not started after initial power up reset

1 – DPDM detection is complete

DPDM_R

D+D

− detection result

0 – Standard USB port (500mA current limit)

1 – USB charger (975mA current limit)

OTG

OTG pin status

0 – OTG pin at low level

1 – OTG pin at high level

(1) Default values reflect state after Power On Reset, no charger plugged in, no faults present, OTG pin high.