EVK-ACT8945AQJ303-T Datasheet, PDF (11/42 Pages) Active-Semi, Inc – Advanced PMU for Atmel SAMA5D3 Series & SAM9 Series Processors

ACT8945A
Rev 2, 11-Feb-14
REGISTER AND BIT DESCRIPTIONS CONT’D
OUTPUT ADDRESS BIT NAME ACCESS
DESCRIPTION
REG2
0x30 [7:6]
-
R Reserved.
REG2
0x30 [5:0] VSET1
Primary Output Voltage Selection. Valid when VSEL is driven
R/W low. See the Output Voltage Programming section for more
information.
REG2
0x31 [7:6]
-
R Reserved.
REG2
0x31 [5:0] VSET2
Secondary Output Voltage Selection. Valid when VSEL is
R/W driven high. See the Output Voltage Programming section for
more information.
REG2
0x32
[7]
ON
R/W
Regulator Enable Bit. Set bit to 1 to enable the regulator, clear
bit to 0 to disable the regulator.
REG2
0x32
[6] PHASE
Regulator Phase Control. Set bit to 1 for the regulator to
R/W operate 180° out of phase with the oscillator, clear bit to 0 for
the regulator to operate in phase with the oscillator.
REG2
0x32
[5] MODE
Regulator Mode Select. Set bit to 1 for fixed-frequency PWM
R/W under all load conditions, clear bit to 0 to transit to power-
savings mode under light-load conditions.
REG2
0x32 [4:2] DELAY
R/W
Regulator Turn-On Delay Control. See the REG1, REG2,
REG3 Turn-on Delay section for more information.
REG2
0x32
[1] nFLTMSK
R/W
Regulator Fault Mask Control. Set bit to 1 enable fault-
interrupts, clear bit to 0 to disable fault-interrupts.
REG2
0x32
[0]
OK
R
Regulator Power-OK Status. Value is 1 when output voltage
exceeds the power-OK threshold, value is 0 otherwise.
REG3
0x40 [7:6]
-
R Reserved.
REG3
0x40 [5:0] VSET1
Primary Output Voltage Selection. Valid when VSEL is driven
R/W low. See the Output Voltage Programming section for more
information.
REG3
0x41 [7:6]
-
R Reserved.
REG3
0x41 [5:0] VSET2
Secondary Output Voltage Selection. Valid when VSEL is
R/W driven high. See the Output Voltage Programming section for
more information.
REG3
0x42
[7]
ON
R/W
Regulator Enable Bit. Set bit to 1 to enable the regulator, clear
bit to 0 to disable the regulator.
REG3
0x42
[6]
-
R/W Reserved.
REG3
REG3
REG3
REG3
0x42
0x42
0x42
0x42
[5] MODE
[4:2] DELAY
[1] nFLTMSK
[0]
OK
Regulator Mode Select. Set bit to 1 for fixed-frequency PWM
R/W under all load conditions, clear bit to 0 to transit to power-
savings mode under light-load conditions.
R/W
Regulator Turn-On Delay Control. See the REG1, REG2,
REG3 Turn-on Delay section for more information.
R/W
Regulator Fault Mask Control. Set bit to 1 enable fault-
interrupts, clear bit to 0 to disable fault-interrupts.
R
Regulator Power-OK Status. Value is 1 when output voltage
exceeds the power-OK threshold, value is 0 otherwise.
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