41594B datasheet(197/372 Pages) MICROCHIP

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 2011-2012 Microchip Technology Inc.

Preliminary

DS41594B-page 197

PIC12LF1840T48A

TABLE 24-8:

EXAMPLE PIN ASSIGNMENTS FOR VARIOUS PWM ENHANCED MODES

FIGURE 24-6:

EXAMPLE PWM (ENHANCED MODE) OUTPUT RELATIONSHIPS (ACTIVE-HIGH

STATE)

FIGURE 24-7:

EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)

ECCP Mode

P1M<1:0>

CCP1/P1A

P1B

Single

Yes(1)

Half-Bridge

Yes

Note 1:

PWM Steering enables outputs in Single mode.

Period

Signal

PR2+1

P1M<1:0>

P1A Modulated

P1B Modulated

Pulse

Width

(Single Output)

(Half-Bridge)

Delay

Relationships:

• Period = 4 * TOSC * (PR2 + 1) * (TMRx Prescale Value)

• Pulse Width = TOSC * (CCPR1L<7:0>:CCP1CON<5:4>) * (TMRx Prescale Value)

• Delay = 4 * TOSC * (PWM1CON<6:0>)

Period

Signal

PR2+1

P1M<1:0>

P1A Modulated

P1B Modulated

Pulse

Width

(Single Output)

(Half-Bridge)

Delay

Relationships:

• Period = 4 * TOSC * (PR2 + 1) * (TMRx Prescale Value)

• Pulse Width = TOSC * (CCPR1L<7:0>:CCP1CON<5:4>) * (TMRx Prescale Value)

• Delay = 4 * TOSC * (PWM1CON<6:0>)

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