LP3972_15 Datasheet, PDF (43/63 Pages) Texas Instruments – Power Management Unit for Advanced Application Processors

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LP3972
SNVS468L – SEPTEMBER 2006 – REVISED NOVEMBER 2015
8.6.2.9 V_CC_BUCK2 Target Voltage Register (B2TV) 8h’85
Bit
7
6
5
Designation
Reserved
Reset Value
0
0
0
4 ⁽¹⁾
3 ⁽¹⁾
2 ⁽¹⁾
1 ⁽¹⁾
0 ⁽¹⁾
Buck2 Output Voltage (B2OV)
1
1
0
0
1
(1) One time factory programmable EPROM registers for default values.
8.6.2.10 V_CC_BUCK2 Target Voltage Register (B2TV) 8h’85 Definitions
Bit
Access
7:5
—
4:0
R/W
Name
B2OV
Reserved
Output Voltage
Data Code
5h’01
5h’02
5h’03
5h’04
5h’05
5h’06
5h’07
5h’08
5h’09
5h’0A
5h’0B
5h’0C
Description
(V)
Data Code
(V)
0.80
5h’0D
1.40
0.85
5h’0E
1.45
0.90
5h’0F
1.50
0.95
5h’10
1.55
1.00
5h’11
1.60
1.05
5h’12
1.65
1.10
5h’13
1.70
1.15
5h’14
1.80
1.20
5h’15
1.90
1.25
5h’16
2.50
1.30
5h’17
2.80
1.35
5h’18
3.00
5h’19 (default)
3.30 (default)
8.6.2.11 BUCK3 Target Voltage Register (B3TV) 8h’86
Bit
7
6
5
Designation
Reserved
Reset Value
0
0
0
4 ⁽¹⁾
3 ⁽¹⁾
2 ⁽¹⁾
1 ⁽¹⁾
0 ⁽¹⁾
Buck3 Output Voltage (B3OV)
1
0
1
0
0
(1) One time factory programmable EPROM registers for default values.
8.6.2.12 BUCK3 Target Voltage Register (B3TV) 8h’86 Definitions
Bit
Access
7:5
—
4:0
R/W
Name
B3OV
Description
Reserved
Output Voltage
Data Code
5h’01
5h’02
5h’03
5h’04
5h’05
5h’06
5h’07
5h’08
5h’09
5h’0A
5h’0B
5h’0C
(V)
Data Code
(V)
0.80
5h’0D
1.40
Default
0.85
5h’0E
1.45
0.90
5h’0F
1.50
0.95
5h’11
1.60
1.00
5h’12
1.65
1.05
5h’13
1.70
1.10
5h’14 (default) 1.80 (default)
1.15
5h’15
1.90
1.20
5h’16
2.50
1.25
5h’17
2.80
1.30
5h’18
3.00
1.35
5h’19
3.30
8.6.2.13 V_CC_BUCK3:2 Voltage Ramp Control Register (B32RC)
8.6.2.13.1 V_CC_BUCK3:2 Voltage Ramp Control Register (B32RC) 8h’87
Bit
7
6
5
4
Designation
Ramp Rate (B3RR)
Reset Value
1
0
1
0
3
2
1
0
Ramp Rate (B2RR)
1
0
1
0
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