PIC16F1516 datasheet(157/344 Pages) MICROCHIP

157 / 344 page

 2011 Microchip Technology Inc.

Preliminary

DS41452B-page 157

PIC16(L)F1516/7/8/9

17.2

Timer0 Control Register

TABLE 17-1:

SUMMARY OF REGISTERS ASSOCIATED WITH TIMER0

OPTION_REG: OPTION REGISTER

R/W-1/1

WPUEN

INTEDG

TMR0CS

TMR0SE

PSA

PS<2:0>

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

u = Bit is unchanged

x = Bit is unknown

-n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set

‘0’ = Bit is cleared

bit 7

WPUEN:

Weak Pull-up Enable bit

= All weak pull-ups are disabled (except MCLR, if it is enabled)

= Weak pull-ups are enabled by individual WPUx latch values

bit 6

INTEDG:

Interrupt Edge Select bit

= Interrupt on rising edge of INT pin

= Interrupt on falling edge of INT pin

bit 5

TMR0CS:

Timer0 Clock Source Select bit

= Transition on T0CKI pin

= Internal instruction cycle clock (FOSC/4)

bit 4

TMR0SE:

Timer0 Source Edge Select bit

= Increment on high-to-low transition on T0CKI pin

= Increment on low-to-high transition on T0CKI pin

bit 3

PSA:

Prescaler Assignment bit

= Prescaler is not assigned to the Timer0 module

= Prescaler is assigned to the Timer0 module

bit 2-0

PS<2:0>:

Prescaler Rate Select bits

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

on Page

INTCON

GIE

PEIE

TMR0IE

INTE

IOCIE

TMR0IF

INTF

IOCIF

OPTION_REG WPUEN INTEDG TMR0CS TMR0SE

PSA

PS<2:0>

157

TMR0

Timer0 Module Register

155*

TRISA

TRISA7

TRISA6

TRISA5

TRISA4

TRISA3

TRISA2

TRISA1

TRISA0

116

Legend:

— = Unimplemented locations, read as ‘0’. Shaded cells are not used by the Timer0 module.

* Page provides register information.

000

001

010

011

100

101

110

111

1 : 2

1 : 4

1 : 8

1 : 16

1 : 32

1 : 64

1 : 128

1 : 256

Bit Value

Timer0 Rate

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