PIC18LF4331T-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18LF4331T-I/SO

28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

Microchip Technology 

PIC18F2331/2431/4331/4431

REGISTER 18-1: PTCON0: PWM TIMER CONTROL REGISTER 0

R/W-0

PTOPS3

bit 7

R/W-0

PTOPS2

R/W-0

PTOPS1

R/W-0

PTOPS0

R/W-0

PTCKPS1

R/W-0

PTCKPS0

R/W-0

PTMOD1

R/W-0

PTMOD0

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-4

bit 3-2

bit 1-0

PTOPS<3:0>: PWM Time Base Output Postscale Select bits

0000 = 1:1 Postscale

0001 = 1:2 Postscale

.

.

.

1111 = 1:16 Postscale

PTCKPS<1:0>: PWM Time Base Input Clock Prescale Select bits

00 = PWM time base input clock is FOSC/4 (1:1 prescale)

01 = PWM time base input clock is FOSC/16 (1:4 prescale)

10 = PWM time base input clock is FOSC/64 (1:16 prescale)

11 = PWM time base input clock is FOSC/256 (1:64 prescale)

PTMOD<1:0>: PWM Time Base Mode Select bits

11 = PWM time base operates in a Continuous Up/Down Count mode with interrupts for double PWM

updates

10 = PWM time base operates in a Continuous Up/Down Count mode

01 = PWM time base configured for Single-Shot mode

00 = PWM time base operates in a Free-Running mode

REGISTER 18-2: PTCON1: PWM TIMER CONTROL REGISTER 1

R/W-0

R-0

U-0

U-0

U-0

U-0

U-0

U-0

PTEN

PTDIR

—

—

—

—

—

—

bit 7

bit 0

Legend:

R = Readable bit

-n = Value at POR

W = Writable bit

‘1’ = Bit is set

U = Unimplemented bit, read as ‘0’

‘0’ = Bit is cleared

x = Bit is unknown

bit 7

bit 6

bit 5-0

PTEN: PWM Time Base Timer Enable bit

1 = PWM time base is on

0 = PWM time base is off

PTDIR: PWM Time Base Count Direction Status bit

1 = PWM time base counts down

0 = PWM time base counts up

Unimplemented: Read as ‘0’

DS39616D-page 178

 2010 Microchip Technology Inc.

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