Samsung RL37Lx Manual do Utilizador descarregar pdf (Página 35)

Confidential MAX8698C, Rev08

Page 35/47

DO NOT COPY. DO NOT DISTRIBUTE 12/8/2009

SDA output from

transmitter

SDA output from

receiver

SCLK from

MASTER

not acknowledge

acknowledge

Clock pulse for

acknowledgement

D7 D6 D0

Start condition

Figure 12 I

C Acknowledge

The device that Acknowledges must pull down the DATA line during the acknowledge clock pulse, so that the

DATA line is stable low during the high period of the Acknowledge clock pulse (set-up and hold times must also

be met). A master receiver must signal an end of data to the transmitter by not generating an acknowledge on

the last byte that has been clocked out of the slave. In this case the transmitter must leave DATA high to enable

the master to generate a stop condition.

MAX8698C I

C Address

The MAX8698C acts as a Slave Transmitter/Receiver. The slave address of the MAX8698C Power

Management Section is

AC/ADh, BC/BDh, or CC/CDh selected by SRAD pin.

SRAD=1; AC/ADh is selected.

SRAD=floating; BC/BDh is selected.

SRAD=0; CC/CDh is selected.

ONOFF1 Register

ONOFF1 control register for Buck1, Buck2, Buck3, LDO2-LDO5.

Address

(hex)

Default

(hex)

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

00 FA EN1 EN2 EN3 ELDO2 ELDO3 ELDO4 ELDO5 x

Name Default Description

EN1 1 R/W

1: Turn Buck1 on (when PWREN=1 or EN1=1, Buck1 regulator is on).

0: Turn Buck1 off (When PWREN=0 and EN1=0, Buck1 regulator is off).

EN2 1 R/W

1: Turn BUCK2 on (when PWREN=1 or EN2=1, Buck2 regulator is on).

0: Turn BUCK2 off (When PWREN=0 and EN2=0, Buck2 regulator is off).

EN3 1 R/W 1: Turn BUCK3 on. 0: Turn BUCK3 off.

ELDO2 1 R/W 1: Turn LDO2 on. 0: Turn LDO2 off.

ELDO3 1 R/W 1: Turn LDO3 on. 0: Turn LDO3 off.

ELDO4 0 R/W 1: Turn LDO4 on. 0: Turn LDO4 off.

ELDO5 1 R/W 1: Turn LDO5 on. 0: Turn LDO5 off.

x x x x

ONOFF2 Register

ON/OFF control register for LDO6-LDO9 and Low Battery Configuration (BLCNFG) of Battery Monitor.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 46 47

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