AT91M55800A_14 Datasheet, PDF (218/256 Pages) ATMEL Corporation – High-performance 32-bit RISC Architecture

• SLEEP: Sleep Mode
SLEEP
0
1
Selected SLEEP
Normal Mode
Sleep Mode
• PRESCAL: Prescaler Rate Selection (ADC_PRESCAL)
This field defines the conversion clock in function of the Master Clock (MCK):
Code Label
ADC_NORMAL_MODE
ADC_SLEEP_MODE
ADCClock = MCK ⁄ ((PRESCAL +1) × 2 )
The ADC clock range is between MCK/2 (PRESCAL = 0) and MCK /128 (PRESCAL = 63). PRESCAL must be pro-
grammed in order to provide an ADC clock frequency according to the parameters given in the AT91M55800A Electrical
Datasheet, literature number 1727.
218 AT91M5880A
1745F–ATARM–06-Sep-07