DA9211 datasheet(47/74 Pages) DIALOG

47 / 74 page

DA9211 and DA9212

Datasheet

Company confidential

Data sheet

Version <3.0>

<07-Jan-2015>

CFR0011-120-00 Rev 3

47 of 74

SLAVEadr W A

REGadr

DATA

S = START condition

A = Acknowledge (low)

Sr = Repeat START condition

* = No Acknowledge

P = STOP condition

W = Write (low)

R = Read (high)

Master to Slave

Slave to Master

7-bits

1 bit

8-bits

DATA

1-bit

8-bits

DATA

……….

8-bits

Repeated writes

Figure 46: 2-WIRE Page Write (SDA Line)

Via control WRITE_MODE an alternate write mode can be configured. Register addresses and data

are sent in alternation like in Figure 47 to support host repeated write operations that access several

non consecutive registers. Data will be stored at the previously received register address.

An update of WRITE_MODE can not be done without interruption within a transmission frame. Thus,

if not previously selected or not set as OTP default, the activation of Repeated Write must be done

with a regular write on WRITE_MODE followed by a stop condition. The next frame after a start

condition can be written in Repeated Write.

SLAVEadr W A

REGadr

DATA

S = START condition

A = Acknowledge (low)

Sr = Repeat START condition

* = No Acknowledge

P = STOP condition

W = Write (low)

R = Read (high)

Master to Slave

Slave to Master

7-bits

1 bit

8-bits

REGadr

1-bit

8-bits

DATA

……….

8-bits

Repeated writes

Figure 47: 2-WIRE Repeated Write (SDA Line)

If a new START or STOP condition occurs within a message, the bus will return to IDLE-mode.

DA9211 Datasheet(PDF) 47 Page - Dialog Semiconductor

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