s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 410

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

ADC AND TOUCH SCREEN INTERFACE
ADC & TOUCH SCREEN INTERFACE OPERATION
BLOCK DIAGRAM
Figure 16-1 shows the functional block diagram of the S3C2410A A/D converter and Touch Screen Interface. Note
that the A/D converter is a recycling type.
A pull-up resister is attached to AIN[7] on VDDA_ADC. So, XP pad of the touch screen panel should be connected
with AIN[7] of the S3C2410A and YP pad of the touch screen panel should be connected with AIN[5].
16-2
VDDA_ADC
VSSA_ADC
EINT[21]
EINT[20]
EINT[23]
EINT[22]
AIN[7]
AIN[6]
AIN[5]
AIN[4]
AIN[3]
AIN[2]
AIN[1]
AIN[0]
Figure 16-1. ADC and Touch Screen Interface Block Diagram
YMON
nXPON
XMON
nYPON
Waiting for Interrupt Mode
ADC Input
MUX
Control
8:1
Transistor
External
Control
Convert
A/D
Generation
Controller
Interface
Interrupt
&Touch
Screen
ADC
INT_ADC
INT_TC
S3C2410A