WM8959 Wolfson Microelectronics Ltd., WM8959 Datasheet - Page 113
WM8959
Manufacturer Part Number
WM8959
Description
Mobile Multimedia DAC with Dual-mode Class AB/D Speaker Driver
Manufacturer
Wolfson Microelectronics Ltd.
Datasheet
1.WM8959.pdf
(155 pages)
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Pre-Production
S
Device ID
RW
(0)
These modes are shown in the section below. Terminology used in the following figures:
Table 67 Terminology
Figure 79 2-Wire Serial Control Interface (single write)
Figure 80 2-Wire Serial Control Interface (single read)
Figure 81 2-Wire Serial Control Interface (multiple write using auto-increment)
Figure 82 2-Wire Serial Control Interface (multiple read using auto-increment)
In 2-wire mode, the WM8959 has two possible device addresses, which can be selected using the
CSB/ADDR pin.
Table 68 2-Wire Control Interface Address Selection
CSB/ADDR STATE
A
TERMINOLOGY
High
Low
RW
Index
Sr
S
A
P
A
Sr
DEVICE ADDRESS
0011010 (0 x 34h)
0011011 (0 x 36h)
Device ID
ReadNotWrite
RW
(1)
A
Start Condition
DESCRIPTION
Repeated start
Stop Condition
Acknowledge
MSByte Data
0 = Write
1 = Read
A
LSByte Data
PP, May 2008, Rev 3.1
WM8959
A
P
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