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All ranges selected by RSELx overlap with RSELx + 1: RSELx = 0 overlaps RSELx = 1, …, RSELx = 14 overlaps RSELx = 15.
DCO control bits DCOx have a step size as defined by parameter SDCO.
Modulation control bits MODx select how often fDCO(RSEL,DCO+1) is used within the period of 32 DCOCLK cycles. The frequency fDCO(RSEL,DCO) is used for the remaining cycles. The frequency is an average equal to:
32 × fDCO(RSEL,DCO) × fDCO(RSEL,DCO+1)
MOD × f + (32 – MOD) × f
faverage =
DCO(RSEL,DCO) DCO(RSEL,DCO+1)
The brownout circuit is implemented to provide the proper internal reset signal to the device during power on and power off.
There are two 8-bit I/O ports implemented:
All individual I/O bits are independently programmable.
Any combination of input, output, and interrupt condition(port P1 and port P2 only) is possible.
Edge-selectable interrupt input capability for all the eight bits of port P1 and port P2, if available.