wm8352 Wolfson Microelectronics plc, wm8352 Datasheet - Page 40
wm8352
Manufacturer Part Number
wm8352
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8352.pdf
(335 pages)
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WM8352
Figure 23 Control Interface 2-wire Register Write
Figure 24 Control Interface 2-wire Register Read
Figure 25 Single Register Write to Specified Address
Figure 26 Single Register Read from Specified Address
w
The sequence of signals associated with a single register write operation is illustrated in Figure 23.
The sequence of signals associated with a single register read operation is illustrated in Figure 24.
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.
Table 2 Control Interface Terminology
TERMINOLOGY
[White field]
[Grey field]
R/W
Sr
S
A
P
ReadNotWrite
Data flow from bus master to WM8352
Data flow from WM8352 to bus master
DESCRIPTION
Start Condition
Repeated start
Stop Condition
Acknowledge
0 = Write
1 = Read
PD, June 2009, Rev 4.1
Production Data
40
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