LNBH26 datasheet(22/38 Pages) STMICROELECTRONICS

Part #	LNBH26

Description	Dual LNBS supply and control IC with step-up and I짼C interface

PDF	38 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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22 / 38 page

I²C interface protocol

LNBH26

22/38

Doc ID 022771 Rev 1

7.3

Data registers

The DATA 1..4 registers can be addressed both in write and read mode. In read mode they

return the last writing byte status received in the previous write transmission.

The following tables provide the register address values of Data 1..4 and a function

description of each bit.

N/A = Reserved bit.

All bits reset to “0” at power-on.

Table 7.

DATA 1 (Read/Write register. Register address = 0X2)

Bit

Name

Value

Description

Bit 0

(LSB)

VSEL1-A

0/1

Channel A

Output voltage selection bits.

(Refer to

Table 14)

Bit 1

VSEL2-A

0/1

Bit 2

VSEL3-A

0/1

Bit 3

VSEL4-A

0/1

Bit 4

VSEL1-B

0/1

Channel B

Output voltage selection bits.

(Refer to

Table 14)

Bit 5

VSEL2-B

0/1

Bit 6

VSEL3-B

0/1

Bit 7

(MSB)

VSEL4-B

0/1

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