TTP259
TonTouchTM
Preliminary
PEI[20BH]: Port E pad data reading address [R], default value [----]
Register
Bit Name
Read/Write
Bit3
PEI3
R
Bit2
PEI2
R
Bit1
PEI1
R
Bit0
PEI0
R
PEI3~PEI0: Port E pad data.
PFI[20CH]: Port F pad data reading address [R], default value [----]
Register
Bit Name
Read/Write
Bit3
PFI3
R
Bit2
PFI2
R
Bit1
PFI1
R
Bit0
PFI0
R
PFI3~PFI0: Port F pad data.
. IO Port’s Special function
When SpecIO is selected by mask option, PA0, PB0 and PB1 is special IO
function. It can output ODATA register to user. ODATA can be store Key touch
information by software. User set PA0 for input, PB0,PB1 for output. User can
use this function to get Key touch information.
When using special IO function, do not use IIC function. If not, PB0,PB1
are unexpected signal.
ODATA[21FH]: Touch pad output register for special function [R/W], default value [0000]
Register
Bit3
ODATA3
R/W
Bit2
ODATA2
R/W
Bit1
ODATA1
R/W
Bit0
ODATA0
R/W
Bit Name
Read/Write
ODATA3~ODATA0: Touch pad information.
PA0 (input)
PB0 (output)
ODATA0
PB1(output)
1
0
ODATA1
ODATA3
ODATA2
2015/05/25
Page 68 of 81
Ver: 1.1
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