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WM8948ECS/R Datenblatt(PDF) 153 Page - Wolfson Microelectronics plc

Teilenummer WM8948ECS/R
Bauteilbeschribung  Stereo Low-Power CODEC with Video Buffer and Touch Panel Controller
PDF  189 Pages
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Hersteller  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8948ECS/R Datenblatt(HTML) 153 Page - Wolfson Microelectronics plc

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Production Data
WM8948
w
PD, May 2011, Rev 4.1
153
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R54 (36h)
Bandgap
15
BG_ENA
0
Bandgap Reference Control
0 = Disabled
1 = Enabled
4:0
BG_VSEL[4:0]
0_1010
Bandgap Voltage select
(Sets the Bandgap voltage)
00000 = 1.200V
… 26.7mV steps
01010 = 1.467V (default)
…
01111 = 1.600V
10000 to 11111 = reserved
(See Table 39 for values)
Register 36h Bandgap
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R55 (37h)
Touch
Control 1
15
TCH_ENA
0
Touch Panel Enable
0 = Disabled
1 = Enabled
14
TCH_CVT_EN
A
0
Touch Panel Conversion Enable
0 = Disabled
1 = Enabled
In automatic mode, conversions are enabled by setting
this bit.
In manual mode (TCH_RATE = 0), setting this bit will
initiate a set of conversion; the bit is reset
automatically.
10
TCH_Z_ENA
0
Enables Z-axis touch panel measurements.
0 = Disabled
1 = Enabled
9
TCH_Y_ENA
0
Enables Y-axis touch panel measurements
0 = Disabled
1 = Enabled
8
TCH_X_ENA
0
Enables X-axis touch panel measurements
0 = Disabled
1 = Enabled
7:5
TCH_DELAY
[2:0]
000
Settling time between X, Y and Z measurements.
(Nominal timing only; typically +/-20% of quoted
values.)
000 = 30us
001 = 60us
010 = 120us
011 = 240us
100 = 480us
101 = 960us
110 = 1920us
111 = 3840us
4:0
TCH_RATE
[4:0]
0_0000
Touch Panel Rate
0_0000 = Manual conversion
0_0001 = 16kHz
0_0010 = 32kHz
…(16kHz steps)
1_1111 = 496kHz
Register 37h Touch Control 1



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