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ACT8846
(Rev.:2013)

Advanced PMU for Multi-core Application Processors

Active-Semi, Inc 

ACT8846

Rev 1, 15-May-13

REGISTER AND BIT DESCRIPTIONS

BLOCK ADDRESS BIT

NAME ACCESS

DESCRIPTION

SYS

0x00

[7] nBATLEVMSK

R/W

Battery Voltage Level Interrupt Mask. Set this bit to 1 to unmask

the interrupt. See the Programmable Battery Voltage Monitor

section for more information

SYS

0x00 [6] nBATSTAT

R

Battery Voltage Status. Value is 1 when BATLEV interrupt is

generated, value is 0 otherwise.

SYS

0x00 [5] VBATDAT

R

Battery Voltage Monitor real time status. Value is 1 when VBAT <

BATLEV, value is 0 otherwise.

SYS

0x00 [4]

-

R/W Reserved.

SYS

0x00 [3:0] BATLEV

Battery Voltage Detect Threshold. Defines the BATLEV voltage

R/W threshold. See the Programmable Battary Voltage Monitor

section for more information.

SYS

0x01 [7]

nTMSK

R/W Thermal Interrupt Mask. Set this bit to 1 to unmask the interrupt.

SYS

0x01 [6]

TSTAT

R

Thermal Interrupt Status. Value is 1 when a thermal interrupt is

generated, value is 0 otherwise.

SYS

0x01 [5:0]

-

R/W Reserved.

REG1 0x12 [7]

ON

R/W

Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit

to 0 to disable the regulator.

REG1 0x12 [6:3]

-

R Reserved.

REG1 0x12 [2]

PHASE

Regulator Phase Control. Set bit to 1 for the regulator to operate

R/W 180° out of phase with the oscillator, clear bit to 0 for the

regulator to operate in phase with the oscillator.

REG1 0x12 [1] nFLTMSK

R/W

Regulator Fault Mask Control. Set bit to 1 enable fault-interrupts,

clear bit to 0 to disable fault-interrupts.

REG1 0x12 [0]

OK

R

Regulator Power-OK Status. Value is 1 when output voltage

exceeds the power-OK threshold, value is 0 otherwise.

REG2 0x20 [7:6]

-

R Reserved.

REG2 0x20 [5:0] VSET0

Primary Output Voltage Selection. Valid when VSEL is driven low.

R/W See the Output Voltage Programming section for more

information

REG2 0x21 [7:6]

-

R Reserved.

REG2 0x21 [5:0] VSET1

Secondary Output Voltage Selection. Valid when VSEL is driven

R/W high. See the Output Voltage Programming section for more

information.

REG2 0x22 [7]

ON

R/W

Regulator Enable Bit. Set bit to 1 to enable the regulator, clear bit

to 0 to disable the regulator.

REG2 0x22 [6:3]

-

R Reserved.

REG2 0x22 [2]

PHASE

Regulator Phase Control. Set bit to 1 for the regulator to operate

R/W 180° out of phase with the oscillator, clear bit to 0 for the

regulator to operate in phase with the oscillator.

REG2 0x22 [1] nFLTMSK

R/W

Regulator Fault Mask Control. Set bit to 1 enable fault-interrupts,

clear bit to 0 to disable fault-interrupts.

REG2 0x22 [0]

OK

R

Regulator Power-OK Status. Value is 1 when output voltage

exceeds the power-OK threshold, value is 0 otherwise.

REG3 0x30 [7:6]

-

R Reserved.

REG3 0x30 [5:0] VSET0

Primary Output Voltage Selection. Valid when VSEL is driven low.

R/W See the Output Voltage Programming section for more

information

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