WM8351 datasheet(40/330 Pages) WOLFSON

Il numero della parte	WM8351

Spiegazioni elettronici	Wolfson AudioPlus??Stereo CODEC with Power Management

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Produttore elettronici	WOLFSON [Wolfson Microelectronics plc]

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WM8351

Production Data

PD, April 2012, Rev 4.5

The sequence of signals associated with a single register read operation is illustrated in Figure 24.

Figure 24 Control Interface 2-wire 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 2.

TERMINOLOGY

DESCRIPTION

Start Condition

Repeated start

Acknowledge

Stop Condition

R/W

ReadNotWrite

0 = Write

1 = Read

[White field]

Data flow from bus master to WM8351

[Grey field]

Data flow from WM8351 to bus master

Table 2 Control Interface Terminology

Figure 25 Single Register Write to Specified Address

Figure 26 Single Register Read from Specified Address

Device ID

(0)

MSByte Data 0

LSByte Data 0

Written to 'Register Address'

MSByte Data N

LSByte Data N

A P

Written to 'Register Address+N'

MSByte Data 1

MSByte Data N-2 A

MSByte Data N-1

LSByte Data N-1

Written to 'Register Address+N-1'

Figure 27 Multiple Register Write to Specified Address using Auto-increment

WM8351 Scheda tecnica(PDF) 40 Page - Wolfson Microelectronics plc