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LP3971 bảng dữ liệu(PDF) 22 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
tên linh kiện LP3971
Giải thích chi tiết về linh kiện  POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS
PDF  42 Pages
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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LP3971 bảng dữ liệu(HTML) 22 Page - National Semiconductor (TI)

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I
2C Register Definitions (Continued)
BUCKS OUTPUT VOLTAGE ENABLE REGISTER (BOVEN) 8h’10
Bit
7
6
543210
Designation
Reserved
B2ENC
Reserved
B3EN
Reserved
B2EN
Reserved
B1EN
Reset Value
0
1
0
1
0
1
0
1
BUCKS ENABLE REGISTER (BOVEN) 8h’10 DEFINITIONS
Bit
Access
Name
Description
7
...
...
Reserved
6
R/W
B2ENC
Connects Buck 2 enable to SYS_EN or PWR_EN Logic Control pin
0 = Buck 2 enable connected to PWR_EN
1 = Buck 2 enable connected to SYS_EN
5
...
...
Reserved
4
R/W
B3EN
VCC_Buck3 Supply Output Enabled
0 = VCC_Buck3 Supply Output Disabled
1 = VCC_Buck3 Supply Output Enabled
3
...
...
Reserved
2
R/W
B2EN
VCC_Buck2 Supply Output Enabled
0 = VCC_Buck2 Supply Output Disabled
1 = VCC_Buck2 Supply Output Enabled
1
...
...
Reserved
0
R/W
B1EN
VCC_Buck1 Supply Output Enabled
0 = VCC_Buck2 Supply Output Disabled
1 = VCC_Buck2 Supply Output Enabled
BUCK STATUS REGISTER (BOVSR) 8h’11
Bit
7
6
5
4
3
2
1
0
Designation
BT_OK
Reserved
Reserved
B3_OK
Reserved
B2_OK
B1_OK
Reset Value
0
0
0
0
0
0
0
0
BUCK STATUS REGISTER (BOVSR) 8h’11 DEFINITIONS
Bit
Access
Name
Description
7
R
BT_OK
Buck 1–3 Supply Output Voltage Status
0 = (Buck 1–3) output voltage <90% Default value
1 = (Buck 1–3) output voltage >90% Default value
6:5
...
...
Reserved
4
R
B3_OK
Buck 3 Supply Output Voltage Status
0 = (Buck 3) output voltage <90% Default value
1 = (Buck 3) output voltage >90% Default value
3
...
...
Reserved
2
R
B2_OK
Buck 2 Supply Output Voltage Status
0 = (Buck 2) output voltage <90% Default value
1 = (Buck 2) output voltage >90% Default value
1
...
...
Reserved
0
R
B1_OK
Buck 1 Supply Output Voltage Status
0 = (Buck 1) output voltage <90% Default value
1 = (Buck 1) output voltage >90% Default value
www.national.com
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