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WM8731SEDS/R データシート(PDF) 48 Page - Wolfson Microelectronics plc

部品番号 WM8731SEDS/R
部品情報  Portable Internet Audio CODEC with Headphone Driver and Programmable Sample Rates
PDF  63 Pages
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メーカー  WOLFSON [Wolfson Microelectronics plc]
ホームページ  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8731SEDS/R データシート(HTML) 48 Page - Wolfson Microelectronics plc

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WM8731 / WM8731L
Production Data
w
PD Rev 4.3 August 2006
48
The device can be powered off by writing to the POWEROFF bit of the Power Down register. In
POWEROFF mode the Control Interface and a small portion of the digital remain active. The
analogue VMID reference is disabled. As in STANDBY mode the crystal oscillator and/or CLKOUT
pin can be independently controlled. Refer to Table 28.
DESCRIPTION
1
0
0
X
X
X
X
X
POWEROFF, but with Crystal
Oscillator OS and CLKOUT
available
1
1
0
X
X
X
X
X
POWEROFF, but with Crystal
Oscillator OS available, CLKOUT
not-available
1
1
1
X
X
X
X
X
POWEROFF, Crystal oscillator
and CLKOUT not-available.
Table 28 Poweroff Mode
REGISTER MAP
The complete register map is shown in Table 29. The detailed description can be found in Table 30
and in the relevant text of the device description. There are 11 registers with 16 bits per register (7 bit
address + 9 bits of data). These can be controlled using either the 2 wire or 3 wire MPU interface.
REGISTER
B
15
B
14
B
13
B
12
B
11
B
10
B
9
B8
B7
B6
B5
B4
B3
B2
B1
B0
R0 (00h)
0
0
0
0
0
0
0
LRIN
BOTH
LIN
MUTE
0
0
LINVOL
R1 (02h)
0
0
0
0
0
0
1
RLIN
BOTH
RIN
MUTE
0
0
RINVOL
R2 (02h)
0
0
0
0
0
1
0
LRHP
BOTH
LZCEN
LHPVOL
R3 (06h)
0
0
0
0
0
1
1
RLHP
BOTH
RZCEN
RHPVOL
R4 (08h)
0
0
0
0
1
0
0
0
SIDEATT
SIDETONE DAC SEL BY PASS
INSEL
MUTE MIC MIC BOOST
R5 (0Ah)
0
0
0
0
1
0
1
0
0
0
0
HPOR DAC MU
DEEMPH
ADC HPD
R6 (0Ch)
0
0
0
0
1
1
0
0
PWR
OFF
CLK
OUTPD
OSCPD
OUTPD
DACPD
ADCPD
MICPD
LINEINPD
R7 (0Eh)
0
0
0
0
1
1
1
0
BCLK
INV
MS
LR SWAP
LRP
IWL
FORMAT
R8 (10h)
0
0
0
1
0
0
0
0
CLKO
DIV2
CLKI
DIV2
SR
BOSR
USB/ NORM
R9 (12h)
0
0
0
1
0
0
1
0
0
0
0
0
0
0
0
ACTIVE
R15(1Eh)
0
0
0
1
1
1
1
RESET
ADDRESS
DATA
Table 29 Mapping of Program Registers



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