WM8945ECSSLASHR datasheet(99/169 Pages) WOLFSON

Numer części	WM8945ECS/R

Szczegółowy opis	Mono Low-Power CODEC with Video Buffer and Touch Panel Controller

PDF	169 Pages

Scroll/Zoom	100%

Producent	WOLFSON [Wolfson Microelectronics plc]

Strona internetowa	http://www.wolfsonmicro.com

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99 / 169 page

Production Data

WM8945

PD, May 2011, Rev 4.1

Figure 38 Control Interface 2-wire (I2C) Register Write

The sequence of signals associated with a single register read operation is illustrated in Figure 39.

Figure 39 Control Interface 2-wire (I2C) Register Read

The Control Interface also supports other register operations, as listed above. The interface protocol

for these operations is summarised below. The terminology used in the following figures is detailed in

Table 67.

Note that, for multiple write and multiple read operations, the auto-increment option must be enabled.

This feature is enabled by default, as noted in Table 66.

TERMINOLOGY

DESCRIPTION

Start Condition

Repeated start

Acknowledge

Stop Condition

R/W

ReadNotWrite

0 = Write

1 = Read

[White field]

Data flow from bus master to WM8945

[Grey field]

Data flow from WM8945 to bus master

Table 67 Control Interface Terminology

Figure 40 Single Register Write to Specified Address

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