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3 time-base timer control register (tbtc), Time-base timer control register (tbtc) – FUJITSU F2MC-8L F202RA User Manual

Page 135

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119

CHAPTER 5 TIME-BASE TIMER

5.3

Time-base Timer Control Register (TBTC)

The time-base timer control register (TBTC) selects a time interval, clears the counter,
controls interrupts, or checks the status.

Time-base Timer Control Register (TBTC)

Figure 5.3-1 Time-base Timer Control Register (TBTC)

TBR

0

1

TBC1 TBC0

0

0

2

1

3

/

F

CH

0

1

1

0

1

1

TBIE

0

1

TBOF

0

1

b

it7

b

it6

b

it5

b

it4

b

it

3

b

it2

b

it1

b

it0

000A

H

TBOF TBIE

TBC1 TBC0 TBR

00---000

B

R/W R/W

R/W R/W

R/W

R/W : Re

a

d

ab

le/Writ

ab

le

: Initi

a

l v

a

l

u

e

2

15

/

F

CH

2

1

8

/

F

CH

2

22

/

F

CH

Addre

ss

Initi

a

l v

a

l

u

e

Time-

bas

e timer initi

a

liz

a

tion

b

it

Re

a

d

Re

a

d

Write

The time-

bas

e timer co

u

nter i

s

cle

a

red.

Write

"1" i

s

a

lw

a

y

s

re

a

d.

Nothing i

s

ch

a

nged

a

nd

a

ffected.

Time interv

a

l

s

election

b

it

s

F

CH

: O

s

cill

a

tion fre

qu

ency

Interr

u

pt re

qu

e

s

t en

ab

le

b

it

The interr

u

pt re

qu

e

s

t o

u

tp

u

t i

s

di

sab

led.

The interr

u

pt re

qu

e

s

t o

u

tp

u

t i

s

en

ab

led.

Overflow interr

u

pt re

qu

e

s

t fl

a

g

b

it

The

s

pecified

b

it h

as

not overflowed. Thi

s

b

it i

s

cle

a

red.

The

s

pecified

b

it h

as

overflowed.

Nothing i

s

ch

a

nged

a

nd

a

ffected.

: Un

us

ed

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