GMS30C7201 Datasheet, PDF (296/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Slow AMBA Peripherals
13.11 Analog–Digital Converter Interface Controller (AIC)
13.11.1Overview
The AIC is a peripheral which includes an ADC, and allows the CPU to read touch panel
position, battery level and microphone signals.
Test Mode Notes:
Test Mode 1:
In this mode the AIC is tested without using the ADC and touch panel.
There is an additional register which provides 8-bit data instead of the
ADC output. There are some additional registers which allow all the AIC
output signals to the ADC to be read back. These registers can be written
to by software.
Test Mode 2:
In this mode, the ADC is tested. Additional registers provide the input
data to the ADC (ADC test). These registers can be written to by
software. There is an additional register to allow the ADC data output
signal (AD signal) to the AIC to be read back.
Features:
• 8kHz and 11.02kHz counter operation clock
• Software Control of ADC operation
• Five analog input channels, allocated to three functions:
1) Touch panel position
- uses full 10-bit ADC resolution
- touch panel drive signal generation
- multiple data reads for each single touch
- four sample rates
2) Battery check
- main and backup battery check
3) Input sound
- 8-bit mono sound data
- two sample rates mode (8kHz or 11.02kHz)
- 16-byte sound data buffers
• Interrupt status register (for multiple interrupt sources)
• Power down mode
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GMS30C7201 Data Sheet