LD39150

LNBH221 software description (same for both section)

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6

LNBH221 software description (same for both

section)

6.1

Interface Protocol

The interface protocol comprises:

- A start condition (S)

- A chip address byte = hex 10 / 11 (the LSB bit determines read(=1)/write(=0) transmission)

- A sequence of data (1 byte + acknowledge)

- A stop condition (P)

ACK= Acknowledge

S= Start

P= Stop

R/W= Read/Write

6.2

System register (SR, 1 Byte)

R,W= read and write bit

R= Read-only bit

All bits reset to 0 at Power-On

CHIP ADDRESS

DATA

MSB

LSB

MSB

LSB

S

0001

000

R/W ACK

ACK

P

MSB

LSB

R, W

R, W

R, W

R, W

R, W

R, W

R

R

PCL

TTX

TEN

LLC

VSEL

EN

OTF

OLF