Datasheet

LP3972
www.ti.com SNVS468K –SEPTEMBER 2006–REVISED MAY 2013
DVM VOLTAGE CHANGE CONTROL REGISTER 1
DVM Voltage Change Control Register 1 (V
CC
1) 8h’20
Bit 7 6 5 4 3 2 1 0
Designation MVS MGO SVS SGO Reserved AVS AGO
Reset Value 0 0 0 0 0 0 0 0
DVM Voltage Change Control Register 1 (V
CC
1) 8h’20 Definitions
Bit Access Name Description
7 R/W MVS V
CC
_MVT (LDO1) Voltage Select
0 - Change V
CC
_MVT Output Voltage to MDVT1
1 - Change V
CC
_MVT Output Voltage to MDVT2
6 R/W MGO Start V
CC
_MVT (LDO1) Voltage Change
0 - Hold V
CC
_MVT Output Voltage at current Level
1 - Ramp V
CC
_MVT Output Voltage as selected by MVS
5 R/W SVS V
CC
_SRAM (LDO5) Voltage Select
0 - Change V
CC
_SRAM Output Voltage to SDTV1
1 - Change V
CC
_SRAM Output Voltage to SDTV2
4 R/W SGO Start V
CC
_SRAM (LDO5) Voltage Change
0 - Hold V
CC
_SRAM Output Voltage at current Level
1 - Change V
CC
_SRAM Output Voltage as selected by SVS
3:2 — — Reserved
1 R/W AVS V
CC
_APPS (Buck1) Voltage Select
0 - Ramp V
CC
_APPS Output Voltage to ADVT1
1 - Ramp V
CC
_APPS Output Voltage to ADVT2
0 R/W AGO Start V
CC
_APPS(Buck1) Voltage Change
0 - Hold V
CC
_APPS Output Voltage at current Level
1 - Ramp V
CC
_APPS Output Voltage as selected by AVS
BUCK1 (V
CC
_APPS) VOLTAGE 1
Buck1 (V
CC
_APPS) Target Voltage 1 Register (ADTV1) 8h’23
Bit 7 6 5 4
(1)
3
(1)
2
(1)
1
(1)
0
(1)
Designation Reserved Buck1 Output Voltage (B1OV1)
Reset Value 0 0 0 0 1 0 1 1
(1) One-time factory programmable
Buck1 (V
CC
_APPS) Target Voltage 1 Register (ADTV1) 8h’23 Definitions
Bit Access Name Description
7:5 — — Reserved
4:0 R/W B1OV1 Data Code Output Voltage Data Code Output Voltage
5h’0 0.725 5h’10 1.125
5h’1 0.750 5h’11 1.150
5h’2 0.775 5h’12 1.175
5h’3 0.800 5h’13 1.200
5h’4 0.825 5h’14 1.225
5h’5 0.850 5h’15 1.250
5h’6 0.875 5h’16 1.275
5h’7 0.900 5h’17 1.300
5h’8 0.925 5h’18 1.325
5h’9 0.950 5h’19 1.350
5h’A 0.975 5h’1A 1.375
5h’B 1.000 5h’1B 1.400
5h’C 1.025 5h’1C 1.425
5h’D 1.050 5h’1D 1.450
5h’E 1.075 5h’1E 1.475
5h’F 1.100 5h’1F 1.500
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