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PRELIMINARY
S3C6400 RISC MICROPROCESSOR
ADC AND TOUCH SCREEN INTERFACE
39-7
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 START DELAY REGISTER (ADCDLY)
Register
Address
R/W
Description
Reset Value
ADCDLY
0x7E00B008
R/W
ADC Start or Interval Delay Register
0x00ff
ADCDLY
Bit
Description
Initial State
FILCLKsrc
[16]
ADCDLY clock source.
0 = External input clock.
1 = RTC clock.
0
DELAY
[15:0]
1) Normal Conversion Mode, XY Position Mode, Auto Position Mode.
→
ADC conversion start delay value.
2) Waiting for Interrupt Mode.
When Stylus Down occurs at STOP MODE, it generates Wake-Up
signal, having interval (several ms), for Exiting STOP MODE.
Note) Do not use Zero value(0x0000)
00ff
Note:
Before ADC conversion, Touch screen uses X-tal clock (3.68MHz).
During ADC conversion GCLK (Max. 50MHz) is used.