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ADC AND TOUCH SCREEN INTERFACE
S3C2416X RISC MICROPROCESSOR
22-6
3.2 ADC TOUCH SCREEN CONTROL (ADCTSC) REGISTER
Register
Address
R/W
Description
Reset Value
ADCTSC 0x58000004
R/W
ADC
touch
screen control register
0x058
ADCTSC
Bit
Description
Initial State
UD_SEN
[8]
Select interrupt source Stylus Up or Down
0 = Detect Stylus Down Signal.
1 = Detect Stylus Up Signal.
0
YM_SEN
[7]
YM to GND Switch Enable
0 = Switch disable.(YM = AIN6, Hi-z)
1 = Switch enable.(YM = VSSA_ADC)
0
YP_SEN
[6]
YP to VDD Switch Enable
0 = Switch enable.(YP = VDDA_ADC)
1 = Switch disable.(YP = AIN7, Hi-z)
1
XM_SEN
[5]
XM to GND Switch Enable
0 = Switch disable.(XM = AIN8, Hi-z)
1 = Switch enable.(XM = VSSA_ADC)
0
XP_SEN
[4]
XP to VDD Switch Enable
0 = Switch enable.(XP = VDDA_ADC)
1 = Switch disable.(XP = AIN9, Hi-z)
1
PULL_UP
[3]
XP Pull-up Switch Enable
0 = XP pull-up enable.
1 = XP pull-up disable.
1
AUTO_PST
[2]
Automatically sequencing conversion of X-Position and Y-Position
0 = Normal ADC conversion.
1 = Auto measurement of X-position, Y-position.
0
XY_PST [1:0]
Manually
measurement
of X-Position or Y-Position.
00 = No operation mode
01 = X-position measurement
10 = Y-position measurement
11 = Waiting for Interrupt Mode
0
NOTES:
1.
While waiting for Touch screen Interrupt, XP_SEN bit should be set to ‘1’(XP Output disable)
and PULL_UP bit should be set to ‘0’(XP Pull-up enable).
2.
AUTO_PST bit should be set ‘1’ only in Automatic (Sequential) X/Y Position conversion.
3.
PULL_UP switche should be eabled during stop/sleep mode to avoid leakage current.
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...