ACT5880 datasheet(37/87 Pages) ACTIVE-SEMI

37 / 87 page

ACT5880

Rev 2, 03-Sep-13

- 37 -

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BLOCK

ADDRESS

and BIT

NAME

DEFAULT

and

ACCESS

DESCRIPTION

TSC

ADC

0xF0

nEN

W/R

Set bit to 0 to enable the TSC ADC block, set bit to 1 to disable it.

SINGLE

W/R

Set bit to 1 for one channel only acquisition, set bit to 0 for multi-

channel scanning.

CHANNEL[2]

W/R

CHANNEL[1]

CHANNEL[0]

CH03

W/R

Set bit to 1 for scanning channel 0 to channel 3, set bit to 0 for

not scanning. Refer to the REGISTER AND BIT DESCRIPTIONS

section for CHANNEL[2], CHANNEL[1] and CHANNEL[0] for

channel coding.

CH47

W/R

Set bit to 1 for scanning channel 4 to channel 7, set bit to 0 for

not scanning. Refer to the REGISTER AND BIT DESCRIPTIONS

section descriptions for CHANNEL[2], CHANNEL[1] and

CHANNEL[0] for channel coding.

ACQ

W/R

Write and read for different functions. Set bit from 0 to 1

initializes an acquisition procedure designated by the SINGLE,

CHANNEL[2:0] or CH03, CH47.

0xF1

CLEN

W/R

Data Length of Conversion. Set bit to 0 for 12 bits, set bit to 1 for

8 bits.

PENWKEN

W/R

Pen Entry Wake-up Enable. Set bit to 1 to allow waking-up

against pen entry.

PENSTAT

Pen Touch Detection Instant Status. Read back value is 1 for in

touching, read back value is 0 for no touching.

PENIRQ

Pen Touch Detection Interrupt Status. Read back value is 1 when

a pen touch interrupt is generated and it is automatically cleared

to 0 upon reading. Read back value is 0 when no interrupt is

generated.

DATARDY

Data Ready Interrupt Status. Read back value is 1 when the data

ready interrupt is generated and it is automatically cleared to 0

upon reading. Read back value is 0 when no interrupt generated.

To start a new conversion, this bit must be cleared to 0.

nAUTO

W/R

Acquisition Starting Mode Setting.

Set bit to 1 for starting acquisition by when the ACQ bit is set 1.

Set bit to 0 for automatic starting by when pen touch is detected.

The interrupt asserts only when the acquisition completes and

the data is ready.

PENMASK

W/R

Write or read for different functions. Pen Touch Interrupt Mask.

Set bit to 1 to mask the pen touch detection interrupt, set bit to 0

to allow pen touch detection interrupt.

DATAMASK

W/R

Write or read for different functions. Data Ready Interrupt Mask.

Set bit to 1 to mask the data ready interrupt, set bit to 0 to allow

data ready interrupt.

Specify which channel to measure for one channel only

acquisition.

Channel[2:0]=0 for X-coordinate position, 1 for Y-coordinate

position, 2 for Z-coordinate position 1, 3 for Z-coordinate position

2, 4 for AUX0, 5 for AUX1, 6 for AUX2 and 7 for AUX3.

Note:

W/R: Write and read accessible. R: Read accessible, writing to the bit does not make change to the volume. WE/R: Write

and read accessible, write exact what it is before to avoid unexpected behavior. X is uncertain volume.

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