PIC18F45J50-I/SOSQTP データシートの表示（PDF） - Microchip Technology

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PIC18F45J50-I/SOSQTP

28/44-Pin, Low-Power, High-Performance USB Microcontrollers with nanoWatt XLP Technology

Microchip Technology 

PIC18F46J50 FAMILY

15.1 Timer3 Gate Control Register

The Timer3 Gate Control register (T3GCON), provided

in Register 14-2, is used to control the Timer3 gate.

REGISTER 15-2: T3GCON: TIMER3 GATE CONTROL REGISTER (ACCESS F97h)(1)

R/W-0

TMR3GE

bit 7

R/W-0

T3GPOL

R/W-0

T3GTM

R/W-0

R/W-0

T3GSPM T3GGO/T3DONE

R-x

T3GVAL

R/W-0

T3GSS1

R/W-0

T3GSS0

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

bit 4

bit 3

bit 2

bit 1-0

TMR3GE: Timer3 Gate Enable bit

If TMR3ON = 0:

This bit is ignored.

If TMR3ON = 1:

1 = Timer3 counting is controlled by the Timer3 gate function

0 = Timer3 counts regardless of Timer3 gate function

T3GPOL: Timer3 Gate Polarity bit

1 = Timer3 gate is active-high (Timer3 counts when gate is high)

0 = Timer3 gate is active-low (Timer3 counts when gate is low)

T3GTM: Timer3 Gate Toggle Mode bit

1 = Timer3 Gate Toggle mode is enabled.

0 = Timer3 Gate Toggle mode is disabled and toggle flip-flop is cleared

Timer3 gate flip-flop toggles on every rising edge.

T3GSPM: Timer3 Gate Single Pulse Mode bit

1 = Timer3 Gate Single Pulse mode is enabled and is controlling Timer3 gate

0 = Timer3 Gate Single Pulse mode is disabled

T3GGO/T3DONE: Timer3 Gate Single Pulse Acquisition Status bit

1 = Timer3 gate single pulse acquisition is ready, waiting for an edge

0 = Timer3 gate single pulse acquisition has completed or has not been started

This bit is automatically cleared when T3GSPM is cleared.

T3GVAL: Timer3 Gate Current State bit

Indicates the current state of the Timer3 gate that could be provided to TMR3H:TMR3L. Unaffected by

Timer3 Gate Enable bit (TMR3GE).

T3GSS<1:0>: Timer3 Gate Source Select bits

10 = TMR2 to match PR2 output

01 = Timer0 overflow output

00 = Timer3 gate pin (T3G)

Note 1: Programming the T3GCON prior to T3CON is recommended.

DS39931D-page 214

 2011 Microchip Technology Inc.

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