RT9451

25

DS9451-00

September 2013

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2013 Richtek Technology Corporation. All rights reserved.

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Interrupt Register 3 (INT3)

Address - 0x0Ah

Data Bit

D7

D6

D5

D4

D3

D2

D1

D0

Field Name

BSTVINOVI

BSTOLI

BSTLOWVI

BSTBATOVI

BST32SI

Not

used

Not

used

Not

used

Read/Write

R

R

R

R

R

R

R

R

Reset Value

0

0

0

0

0

0

0

0

Field Name

Bit Definition

(1)

BSTVINOVI

Boost fault. VIN OVP (VIN > VIN_BOVP)

BSTOLI

Boost fault. Over load.

BSTLOWVI

Boost fault. Battery voltage is too low.

BSTBATOVI

Boost fault. Battery over voltage.

BST32SI

Boost fault. 32s time-out fault.

Not used

N/A

Not used

N/A

Not used

N/A

(1) All charger faults result in disabling the charger (CH_EN [1:0] = 00).

Interrupt MASK Register 1 (MASK1)

Address - 0x0Bh

Data Bit

D7

D6

D5

D4

D3

D2

D1

D0

Field Name

TSDM

VINOVPM

Not used

Not used

Not used

Not used

Not used

Not used

Read/Write

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

Reset Value

0

0

0

0

0

0

0

0

Field Name

Bit Definition

(1)

TSDM

TSD fault interrupt mask

0 – Interrupt not masked

1 – Interrupt masked

VINOVPM

VIN OVP fault interrupt mask

0 – Interrupt not masked

1 – Interrupt masked

Not used

N/A

Not used

N/A

Not used

N/A

Not used

N/A

Not used

N/A

Not used

N/A

(1) Setting any of the interrupt mask bits does not disable protection circuits. When set, the respective fault will not be

signaled on the INT pin.