Relationships Among Tpx, Tpy, Adin, And Audioin Pins And States - NEC VR4181 mPD30181 User Manual

14.5 Relationships among TPX, TPY, ADIN, and AUDIOIN Pins and States

State
PIU disable (pen status detection)
Low-power standby
Pen status detection
Voltage detection at general-purpose AD0 port
Voltage detection at general-purpose AD1 port
Voltage detection at general-purpose AD2 port
Voltage detection at audio input port
Touch pressure detection (Z)
TPY1=L, TPY0=H, TPX0=samp (X–)
TPY1=H, TPY0=L, TPX0=samp (X+)
TPX1=L, TPX0=H, TPY0=samp (Y−)
TPX1=H, TPX0=L, TPY0=samp (Y+)
Note The states of pins are not guaranteed if the PADSTATE(2:0) immediately before the CPU's SUSPEND or
HIBERNATE instruction execution is in a state other then the Disable state.
Remarks 0 : Low level input
1 : High level input
L : Low level output
H : High level output
l : A/D converter input
D : Touch interrupt request input (with a pull-down resistor)
d : No touch interrupt request input (with a pull-down resistor)
− : Don't care
CHAPTER 14 TOUCH PANEL INTERFACE UNIT (PIU)
PADSTATE(2:0)
Disable
Standby
WaitPenTouch/Interval
ADPScan
ADPScan
ADPScan
ADPScan
DataScan
DataScan
DataScan
DataScan
DataScan
User's Manual U14272EJ3V0UM
TPX(1:0)
Note
HH
00
HH
00
00
00
00
HH
−I
−I
LH
HL
TPY(1:0) AUDIOIN,
ADIN(2:0)
−−−−
D−
−−−−
00
−−−−
D−
−−−I
00
−−I−
00
−I−−
00
00 I−−−
−−−−
d−
−−−−
LH
−−−−
HL
−I −−−−
−I
−−−−
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