Samsung S3C2451X User Manual page 649

S3C2451X RISC MICROPROCESSOR
ADC CONVERSION DATA (ADCDAT1) REGISTER
Register
ADCDAT1 0x58000010
ADCDAT1
UPDOWN
AUTO_PST
XY_PST [13:12]
YPDATA_12 [11:10]
YPDATA
ADC TOUCH SCREEN UP-DOWN INT CHECK REGISTER (ADCUPDN)
Register
ADCUPDN 0x5800014
ADCUPDN
TSC_UP
TSC_DN
Address R/W
R ADC conversion data register
Bit
[15] Up or down state of Stylus at Waiting for Interrupt Mode.
0 = Stylus down state
1 = Stylus up state
[14] Automatic sequencing conversion of X-position and
Y-position. (mirroring AUTO_PST in ADCTSC register)
0 = Normal ADC conversion
1 = Auto measurement of X-position, Y-position
Manual measurement of X-position or Y-position. (mirroring
XY_PST in ADCTSC register)
00 = No operation mode
01 = X-position measurement
10 = Y-position measurement
11 = Waiting for Interrupt Mode
When A/D resolution is 12bit, X-position conversion MSB 2-bit
data value.
Data value(data [11:0]) = 0 ~ 0xFFF
[9:0] Y-position conversion data value.
Data value(data [9:0]) = 0 ~ 0x3FF
Address R/W
R/W Stylus Up or Down Interrpt state register
Bit
[1] Stylus Up Interrupt history. (After check, this bit should be cleared
manually)
0 = No stylus up state.
1 = Stylus up interrupt has been occurred.
[0] Stylus Down Interrupt history. (After check, this bit should be
cleared manually)
0 = No stylus down state.
1 = Stylus down interrupt has been occurred.
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
ADC AND TOUCH SCREEN INTERFACE
Description
Description
Description
Description
Reset Value
-
Initial State
-
-
-
-
Reset Value
0x0
Initial State
0
0
24-9