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1745D–ATARM–04-Nov-05
AT91M55800A
• SLEEP: Sleep Mode
• PRESCAL: Prescaler Rate Selection (ADC_PRESCAL)
This field defines the conversion clock in function of the Master Clock (MCK):
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.
SLEEP Selected SLEEP Code Label
0 Normal Mode ADC_NORMAL_MODE
1 Sleep Mode ADC_SLEEP_MODE
A
DCClock MCK ((PRESCAL +1)⁄ 2×
)
=