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14.3.6 PIUASCNREG (0x0B00 0130)
Bit
15
Name
Reserved
R/W
R
RTCRST
0
Other resets
0
Bit
7
Name
Reserved
R/W
R
RTCRST
0
Other resets
0
Bit
Name
15 to 2
Reserved
1
TPPSCAN
0
ADPSSTART
This register is used for ADPScan setting.
The ADPScan begins when the ADPSSTART bit is set. After the ADPScan is completed, the sequencer returns to
the state when ADPScan was started, and the ADPSSTART bit is cleared to 0 automatically.
If the ADPScan is not completed within the time period set via the STABLE bits of the PIUSTBLREG register, a
data lost interrupt request occurs as a timeout interrupt.
Caution Manipulation of the TPPSCAN bit is valid only in the standby state. In the other states, the
operation is not guaranteed.
Some bits in this register cannot be set in a specific state of scan sequencer. The combination of the setting of
this register and the sequencer state is as follows.
CHAPTER 14 TOUCH PANEL INTERFACE UNIT (PIU)
14
13
Reserved
Reserved
Reserved
R
R
0
0
0
0
6
5
Reserved
Reserved
Reserved
R
R
0
0
0
0
0 is returned when read
Port selection for ADPScan
1 : Select TPX(1:0), TPY(1:0) (for touch panel) as A/D port
0 : Select ADIN(2:0) (general-purpose) as A/D port and AUDIOIN as audio input port
ADPScan start
1 : Start ADPScan
0 : Do not perform ADPScan
User's Manual U14272EJ3V0UM
12
11
10
Reserved
Reserved
R
R
R
0
0
0
0
4
3
Reserved
Reserved
R
R
R
0
0
0
0
Function
9
8
Reserved
Reserved
R
R
0
0
0
0
0
0
2
1
0
TPPSCAN
ADPS
START
R/W
R/W
0
0
0
0
0
0
289
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