ATmega16M1 datasheet(155/365 Pages) ATMEL

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7647F–AVR–04/09

ATmega16/32/64/M1/C1

• Bit 4:3:2 – SWAPn: SWAP Funtion Select (not implemented in ATmega32M1 up to

revision C)

When this bit is set; the channels PSCOUTnA and PSCOUTnB are exchanged. This allows to

invert the waveforms of both channels at one time.

• Bit 1 – PCCYC: PSC Complete Cycle

When this bit is set, the PSC completes the entire waveform cycle before halt operation

requested by clearing PRUN.

• Bit 0 – PRUN : PSC Run

Writing this bit to one starts the PSC.

14.16.9

PSC Module n Input Control Register – PMICn

The Input Control Registers are used to configure the 2 PSC’s Retrigger/Fault block A & B. The

2 blocks are identical, so they are configured on the same way.

• Bit 7 – POVENn : PSC Module n Overlap Enable

Set this bit to disactivate the Overlap Protection. See the Section “Overlap Protection”,

page 143.

• Bit 6 – PISELn : PSC Module n Input Select

Clear this bit to select PSCINn as module n input.

Set this bit to select Comparator n output as module n input.

• Bit 5 –PELEVn : PSC Module n Input Level Selector

When this bit is clear, the low level of selected input generates the significative event for fault

function.

When this bit is set, the high level of selected input generates the significative event for fault

function.

• Bit 4 – PFLTEn : PSC Module n Input Filter Enable

Setting this bit (to one) activates the Input Noise Canceler. When the noise canceler is activated,

the input from the input pin is filtered. The filter function requires four successive equal valued

samples of the input pin for changing its output. The Input is therefore delayed by four oscillator

cycles when the noise canceler is enabled.

• Bit 3 – PAOCn : PSC Module n 0 Asynchronous Output Control

When this bit is clear, Fault input can act directly to PSC module n outputs A & B. See

Section “PSC Input Configuration”, page 146.

• Bit 2:0 – PRFMn2:0: PSC Module n Input Mode

These three bits define the mode of operation of the PSC inputs.

Bit

654

POVENn

PISELn

PELEVn

PFLTEn

PAOCn

PRFMn2

PRFMn1

PRFMn0

PMICn

Read/Write

R/W

Initial Value

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