TSC2101_07 Datasheet, PDF (52/93 Pages) Texas Instruments – AUDIO CODEC WITH INTEGRATED HEADPHONE, SPEAKER AMPLIFIER AND TOUCH SCREEN CONTROLLER

TSC2101
SLAS392D− JUNE 2003 − REVISED MAY 2005
www.ti.com
REGISTER 04H: Reset Control
BIT
NAME
RESET READ/
VALUE WRITE
FUNCTION
D15−D0 RSALL
R/W FFFFH Reset All. Writing the code 0xBB00, as shown below, to this register causes the TSC2101 to reset
all its control registers to their default, power−up values.
1011101100000000 => Reset all control registers
Others
=> Do not write other sequences to the register.
REGISTER 05H: Configuration Control
BIT
NAME
RESET READ/
VALUE WRITE
FUNCTION
D15−D7
0’s
R Reserved
D6
SWPDTD
0
R/W Software Powerdown Control for Pen Touch Detection
0 => Pen touch detection is enabled.
1 => Pen touch detection is disabled.
D5−D3 PRECTM 000
R/W Precharge Time. These bits set the amount of time allowed for precharging any pin capacitance on
the touch screen prior to sensing if a screen touch is happening.
000 => 20 µs
001 => 84 µ
010 => 276 µ
011 => 340 µs
100 => 1.044 ms
101 => 1.108 ms
110 => 1.300 m
111 => 1.364 ms
D2−D0 RPWUDL 000
R/W Sense Time. These bits set the amount of time the TSC2101 need to wait to sense a screen touch
between coordinate axes.
000 => 32 µs
001 => 96 µs
010 => 544 µs
011 => 608 µs
100 => 2.080 ms
101 => 2.144 m
110 => 2.592 ms
111 => 2.656 ms
REGISTER 06H: Temperature Max Threshold Measurement
BIT
NAME
RESET READ/
VALUE WRITE
FUNCTION
D15−D13
0’s
R Reserved
D12
TMXES
0
R/W Max Temperature (TEMP1 or TEMP2) threshold check enable for Auto/Non−Auto−Scan
Measurement.
0 => Max Temperature threshold check is disabled.
1 => Max Temperature threshold check is enabled.
Only valid for TEMP1 or TEMP2. Depends on bit TSCAN of control register 0CH/page 1 in case
of auto−scan measurement and depends on bits ADCSM of control register 00H/page 1 in case
of non−auto−scan measurement.
D11−D0 TTHRESH FFFH
R/W Temperature Max Threshold. When code due to temperature measurement goes above or equal
to programmed threshold value, interrupt is generated.
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