WM8311 datasheet(131/302 Pages) WOLFSON

131 / 302 page

Pre-Production

WM8311

PP, May 2012, Rev 3.1

131

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R16424 (4028h)

Touch Control 1

TCH_ENA

Touch Panel Enable

0 = Disabled

1 = Enabled

Note - this bit is reset to 0 when

the OFF power state is entered.

TCH_CVT_ENA

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 after each set of

measurements.

TCH_SLPENA

Touch Panel SLEEP Enable

0 = Disabled

1 = Controlled by TCH_ENA

TCH_Z_ENA

Enables Z-axis touch panel

measurements.

(Z-axis is the pressure axis - 4-

wire only.)

0 = Disabled

1 = Enabled

TCH_Y_ENA

Enables Y-axis touch panel

measurements

0 = Disabled

1 = Enabled

TCH_X_ENA

Enables X-axis touch panel

measurements

0 = Disabled

1 = Enabled

7:5

TCH_DELAY [2:0]

010

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 Conversion Rate

0 = Manual

1 = 16 packets/s

2 = 32 packets/s

3 = 48 packets/s

…

31 = 496 packets/s

R16425 (4029h)

Touch Control 2

TCH_PD_WK

WAKE transition select for Pen

Down event

0 = Disabled

1 = Enabled

WM8311 Datasheet(PDF) 131 Page - Wolfson Microelectronics plc

WM8311 Datasheet(HTML) 131 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL