WM8941GEFL WOLFSON [Wolfson Microelectronics plc], WM8941GEFL Datasheet - Page 70
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WM8941GEFL
Manufacturer Part Number
WM8941GEFL
Description
Mono CODEC with Speaker Driver and Video Buffer
Manufacturer
WOLFSON [Wolfson Microelectronics plc]
Datasheet
1.WM8941GEFL.pdf
(96 pages)
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WM8941
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3-WIRE SERIAL CONTROL MODE
READBACK IN 3-WIRE MODE
Figure 42 3-Wire Serial Control Interface
Figure 43 Alternative 3-Wire Serial Control Timing
Figure 44 Alternative 3-Wire Serial Control Timing
Table 57 Readback Registers
In 3-wire mode, every rising edge of SCLK clocks in one data bit from the SDIN pin. A rising edge on
CSB/GPIO latches in a complete control word consisting of the last 16 bits.
The following two timing diagrams are also supported.
A limited number of Readback addresses are provided to enable ALC operation to be monitored and
to establish the identity and revision of the device.
R0
Software Reset
R1
Power
Management 1
REGISTER
ADDRESS
15:0
2:0
BIT
CHIP_ID
DEVICE_REVI
SON
LABEL
DEFAULT
Readback the CHIP ID
Readback the DEVICE_REVISON
PP, Rev 3.3, December 2007
DESCRIPTION
Pre Production
70
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