Adc Conversion Data (Adcdat1) Register; Adc Touch Screen Up-Down Int Check Register (Adcupdn) - Samsung S3C2416 User Manual

S3C2416X RISC MICROPROCESSOR

3.5 ADC CONVERSION DATA (ADCDAT1) REGISTER

Register
ADCDAT1 0x58000010
ADCDAT1
UPDOWN
AUTO_PST
XY_PST [13:12]
YPDATA_12 [11:10]
YPDATA

3.6 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.
ADC AND TOUCH SCREEN INTERFACE
Description
Description
Description
Description
Reset Value
-
Initial State
-
-
-
-
Reset Value
0x0
Initial State
0
0
22-9