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WM8940 bảng dữ liệu(PDF) 61 Page - Wolfson Microelectronics plc

tên linh kiện WM8940
Giải thích chi tiết về linh kiện  Mono CODEC with Speaker Driver
PDF  85 Pages
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nhà sản xuất  WOLFSON [Wolfson Microelectronics plc]
Trang chủ  http://www.wolfsonmicro.com
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WM8940 bảng dữ liệu(HTML) 61 Page - Wolfson Microelectronics plc

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Pre-Production
WM8940
w
Pre-Production, Rev 3.0, February 2007
61
3-WIRE SERIAL CONTROL MODE
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.
Figure 34 3-Wire Serial Control Interface
READBACK IN 3-WIRE MODE
The following two timing diagrams are also supported.
Figure 35 Alternative 3-Wire Serial Control Timing
Figure 36 Alternative 3-Wire Serial Control Timing
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.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R0
Software Reset
15:0
CHIP_ID
Readback the CHIP ID
R1
Power
Management 1
2:0
DEVICE_REVI
SON
Readback the DEVICE_REVISON
Table 56 Readback Registers



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