LP3941A Serial Port Communication Address Code

7h’7E

Numbers in parentheses indicate default setting: (0) bit is set to low state, and (1) bit is set to high state. R/O –Read Only, All other

bits are Read and Write.

TABLE 1. LP3941 Control and Data Codes

Addr

Register

7

6

5

4

3

2

1

0

8h'00

Enable

LDO7–EN

(0)

LDO6–EN

(0)

LDO5–EN

(1)

LDO4–EN

(0)

LDO3–EN

(1)

LDO2–EN

(0)

LDO1–EN

(1)

LDO8–EN

(0)

8h'01

LDO9/

LDO1 Data

Code

LDO9

Code 3

(1)

LDO9

Code 2

(1)

LDO9

Code 1

(1)

LDO9

Code 0

(1)

LDO1

Code 3

(0)

LDO1

Code 2

(0)

LDO1

Code 1

(1)

LDO1

Code 0

(1)

8h'02

LDO10/

LDO2 Data

Code

LDO10

Code 3

(1)

LDO10

Code 2

(0)

LDO10

Code 1

(1)

LDO10

Code 0

(0)

LDO2

Code 3

(1)

LDO2

Code 2

(1)

LDO2

Code 1

(0)

LDO2

Code 0

(1)

8h'03

LDO8/

LDO3 Data

Code

Not Used

(0)

LDO8

Code 2

(1)

LDO8

Code 1

(0)

LDO8

Code 0

(1)

Not Used

(0)

LDO3

Code 2

(1)

LDO3

Code 1

(0)

LDO3

Code 0

(1)

8h'04

LDO11/

LDO4 Data

Code

LDO11

Code 3

(0)

LDO11

Code 2

(0)

LDO11

Code 1

(0)

LDO11

Code 0

(0)

LDO4

Code 3

(1)

LDO4

Code 2

(1)

LDO4

Code 1

(1)

LDO4

Code 0

(1)

8h'05

LDO5

Data Code

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

LDO5

Code 2

(0)

LDO5

Code 1

(1)

LDO5

Code 0

(1)

8h'06

LDO6

Data Code

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

LDO6

Code 2

(0)

LDO6

Code 1

(1)

LDO6

Code 0

(1)

8h'07

LDO7

Data Code

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

LDO7

Code 2

(1)

LDO7

Code 1

(0)

LDO7

Code 0

(1)

8h'08

Charger

Register –1

Not Used

(0)

Not Used

(0)

Not Used

(0)

4.1V/4.2V

(1)

Charger

Current

Code 3 (0)

Charger

Current

Code 2 (0)

Charger

Current

Code 1 (0)

Charger

Current

Code 0 (1)

8h'09

Charger

Register –2

Not Used

(0)

Not Used

(0)

Not Used

(0)

EOC

R/O

Charging

R/O

EOC Sel-1

(0)

EOC Sel-0

(1)

Charger-

DIS

Off/On

(0)

8h'0a

Control/

Enable

LDO9-EN

(0)

LDO10-EN

(0)

LDO11-EN

(0)

Back-Up

Battery

Charger

Enable

(1)

RTC_LDO

Disable

(0)

LED1

Enable

(0)

LED2

Enable

(0)

LED3

Enable

(0)

8h'0b

ADC

Control

Register

Not Used

(0)

Not Used

(0)

Not Used

(0)

Not Used

(0)

ADC Start

(0)

ADC EN

(0)

ADC

Mux-1

(1)

ADC

Mux-0

(1)

8h'0c

ADC

Output

Register

ADC7

R/O

ADC6

R/O

ADC5

R/O

ADC4

R/O

ADC3

R/O

ADC2

R/O

ADC1

R/O

ADC0

R/O

8h'0d

Power-On-

Reason

Register

R/O

(0)

R/O

(0)

R/O

(0)

R/O

(0)

ON

R/O

RTC

ALARM

R/O

CHG_IN

R/O

HF_PWR

R/O

8h'2e

ADC/

Status

Register

COMP2

OUT

R/O

COMP1

OUT

R/O

ON

R/O

RTC

Alarm

R/O

Charger

Present

R/O

HF_PWR

R/O

ADC

Overflow

R/O

ADC

Data

Ready

R/O

Note 13: Registers h’0c, h’0d, h’2e and h’09 bits 3 and 4 are read only (R/O).

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