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WM8948ECS/R Datenblatt(PDF) 154 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) 154 Page - Wolfson Microelectronics plc

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WM8948
Production Data
w
PD, May 2011, Rev 4.1
154
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R56 (38h)
Touch
Control 2
11
TCH_PDONLY
0
Select Automatic conversions only when Pen Down is
detected. (No effect on Manual conversion.)
0 = Normal
1 = Pen-Down only
8
TCH_ISEL
0
Pressure measurement current select
0 = 230uA
1 = 460uA
3:0
TCH_RPU[3:0]
0111
Pen-Down sensitivity (pull-up resistor)
0000 = 64k (most sensitive)
0001 = 64k / 2
0010 = 64k / 3
0011 = 64k / 4
….
1111 = 64k / 16 (least sensitive)
Register 38h Touch Control 2
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R57 (39h)
Touch Data
X
15
TCH_PD1
0
Pen down status (indicates if the Pen Down was
detected prior to the TP measurement)
0 = Pen Down not detected
1 = Pen Down detected
11:0
TCH_X[11:0]
0000_0000
_0000
Touch panel X-axis data
Register 39h Touch Data X
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R58 (3Ah)
Touch Data
Y
15
TCH_PD2
0
Pen down status (indicates if the Pen Down was
detected prior to the TP measurement)
0 = Pen Down not detected
1 = Pen Down detected
11:0
TCH_Y[11:0]
0000_0000
_0000
Touch panel Y-axis data
Register 3Ah Touch Data Y
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R59 (3Bh)
Touch Data
Z
15
TCH_PD3
0
Pen down status (indicates if the Pen Down was
detected prior to the TP measurement)
0 = Pen Down not detected
1 = Pen Down detected
11:0
TCH_Z[11:0]
0000_0000
_0000
Touch panel Z-axis data
Register 3Bh Touch Data Z



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