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WM8978CGEFL/V датащи(PDF) 81 Page - Wolfson Microelectronics plc

номер детали WM8978CGEFL/V
подробное описание детали  Stereo CODEC with Speaker Driver
PDF  118 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
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WM8978CGEFL/V датащи(HTML) 81 Page - Wolfson Microelectronics plc

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Production Data
WM8978
w
PD, Rev 4.5, October 2011
81
The VMID_EN signal has an OR function performed with the normal VMID driver enable. If the
VMID_EN signal is to have no effect to normal functionality when jack detection is enabled, it should
set to 0 for all JD_EN0 or JD_EN1 settings.
If jack detection is not enabled (JD_EN=0), the output enables default to all 1’s, allowing the outputs
to be controlled as normal via the normal output enables found in Table 49.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R9
GPIO control
5:4
JD_SEL
00
Pin selected as jack detection input
00 = GPIO1
01 = GPIO2
10 = GPIO3
11 = Reserved
6
JD_EN
0
Jack Detection Enable
0 = disabled
1 = enabled
8:7
JD_VMID
00
[7] VMID_EN_0
[8] VMID_EN_1
R13
3:0
JD_EN0
0000
Output enables when selected jack
detection input is logic 0.
[0]= OUT1_EN_0
[1]= OUT2_EN_0
[2]= OUT3_EN_0
[3]= OUT4_EN_0
7:4
JD_EN1
0000
Output enables when selected jack
detection input is logic 1
0000-0011 = Reserved
[4]= OUT1_EN_1
[5]= OUT2_EN_1
[6]= OUT3_EN_1
[7]= OUT4_EN_1
Table 62 Jack Detect Register Control Bits



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