PixArt Imaging Inc.

PAC107

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34

PixArt Imaging Inc.

V1.4, Aug, 2005

Timer 2/ Baud Rate Generator Mode

This mode configures timer 2 as a baud rate generator for use with the serial port. Select

this mode by setting the RCLK and/ or TCLK bits in T2CON.

Timer 2/ Clock-out Mode

In the clock-out mode, timer 2 functions as a 50%-duty-cycle, variable-frequency clock.

12

0

1

XTAL1

T2

TL2

(8 Bits)

Overflow

Interrupt

Request

TH2

(8 Bits)

RCAP2H

RCAP2L

T2EX

EXF2

EXEN2

TR2

TF2

Reload

C/ T2

Timer 2: Auto Reload Mode (DECN = 0)

T2EX

TR2

TL2

(8 Bits)

Overflow

TH2

(8 Bits)

RCAP2H

RCAP2L

FFH

FFH

12

XTAL1

T2

0

1

Count

Direction

1 = Up

0 = Down

Interrupt

Request

TF2

EXF2

(Down Counting Reload

Value)

(Up Counting Reload Value)

C/ T2

Timer 2:Auto Reload Mode (DECN = 1)