PIC18F23K22-ESLASHML datasheet(171/496 Pages) MICROCHIP

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 2010 Microchip Technology Inc.

Preliminary

DS41412C-page 171

PIC18(L)F2X/4XK22

12.14 Timer1/3/5 Gate Control Register

The Timer1/3/5 Gate Control register (TxGCON),

shown in Register 12-2, is used to control Timer1/3/5

Gate.

TXGCON: TIMER1/3/5 GATE CONTROL REGISTER

R/W-0/u

R/W/HC-0/u

R-x/x

R/W-0/u

TMRxGE

TxGPOL

TxGTM

TxGSPM

TxGGO/DONE

TxGVAL

TxGSS<1:0>

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

HC = Bit is cleared by hardware

bit 7

TMRxGE: Timer1/3/5 Gate Enable bit

If TMRxON = 0:

This bit is ignored

If TMRxON = 1:

1 = Timer1/3/5 counting is controlled by the Timer1/3/5 gate function

0 = Timer1/3/5 counts regardless of Timer1/3/5 gate function

bit 6

TxGPOL: Timer1/3/5 Gate Polarity bit

1 = Timer1/3/5 gate is active-high (Timer1/3/5 counts when gate is high)

0 = Timer1/3/5 gate is active-low (Timer1/3/5 counts when gate is low)

bit 5

TxGTM: Timer1/3/5 Gate Toggle Mode bit

1 = Timer1/3/5 Gate Toggle mode is enabled

0 = Timer1/3/5 Gate Toggle mode is disabled and toggle flip-flop is cleared

Timer1/3/5 gate flip-flop toggles on every rising edge.

bit 4

TxGSPM: Timer1/3/5 Gate Single-Pulse Mode bit

1 = Timer1/3/5 gate Single-Pulse mode is enabled and is controlling Timer1/3/5 gate

0 = Timer1/3/5 gate Single-Pulse mode is disabled

bit 3

TxGGO/DONE: Timer1/3/5 Gate Single-Pulse Acquisition Status bit

1 = Timer1/3/5 gate single-pulse acquisition is ready, waiting for an edge

0 = Timer1/3/5 gate single-pulse acquisition has completed or has not been started

This bit is automatically cleared when TxGSPM is cleared.

bit 2

TxGVAL: Timer1/3/5 Gate Current State bit

Indicates the current state of the Timer1/3/5 gate that could be provided to TMRxH:TMRxL.

Unaffected by Timer1/3/5 Gate Enable (TMRxGE).

bit 1-0

TxGSS<1:0>: Timer1/3/5 Gate Source Select bits

00 = Timer1/3/5 Gate pin

01 = Timer2/4/6 Match PR2/4/6 output (See Table 12-6 for proper timer match selection)

10 = Comparator 1 optionally synchronized output (SYNCC1OUT)

11 = Comparator 2 optionally synchronized output (SYNCC2OUT)

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