Megatel Quark/100 Specifications download pdf (Page 67)

TABLE

IlIa

TIMER-2

BAUD

RATES

FOR

AULL-DUPLEX

RECEIVER

IN

SPLIT

BAUD

MODE

-

50HZ

VERSION

BAUD

DIVIDE

BY

1

DIVIDE

BY

16

DIVIDE

BY

64

RATE

VALUE

(HEX)

ERROR

VALUE

(HEX)

ERROR

VALUE

(HEX)

ERROR

--------

---

19200

38

26

.91

1

01

-15.61

0*

00

-68.47

9600

79

4F

-.33 3

03

.91

0*

00

-36.93

7200

106

6A

-.33 5

05

-3.89

0*

00

-15.91

4800

159

9F

.28 8

08

.91

1*

01

-15.91

3600

213

D5

.12

11

CB

3.89 1

01

12.31

2400

18

12

.91

3

03

.91

1800

25

19

-.33

5

05

-3.89

1200

38

26

.91

8

08

.91

600

79

4F

-.33

18 12

.91

300

159

9F

.28

38

26

.91

150

321

79

4F

-.33

134.5

358

88

58

.04

110

438

108

6C

.08

75

644

159

9F

.28

50

967

240

FO

.08

*

Not

recorrrnended.

Use

the Divide-by-16

mode.

TABLE

IIIb

TIMER-2

BAUD

RATES

FOR

FULL-DUPLEX

RECEIVER

IN

SPLIT

BAUD

MODE

-

60HZ

VERSION

BAUD

DIVIDE

BY

1

DIVIDE

BY

16

DIVIDE

BY

64

RATE

VALUE

(HEX)

ERROR

VALUE

(HEX)

ERROR

VALUE

(HEX)

ERROR

19200

37

25

-.42

1

01

-19.09

0*

00

-69.66

9600

76

4C

-.42 3

03

-2.91

D*

00

-39.32

7200

102

66

-

..

42

5

05

-7.53

0*

00

-19.02

4800

153

99

-.23 8

08

-2.91

D*

00

21.37

3600

205

CD

-.06

11

DB

-.42

1

01

7.88

2400

17

11

2.20 3

03

-2.91

1800

24

18

-.42 5

05

-7.53

1200

37

25

-.42

8

08

-2.91

600

76

4C

-.42

17

11

2.20

300

153

99

.23

37

25

-.42

150

309

76

4C

-.42

134.5

345

85

55

-.43

110

422

104

68

-.08

75

619

153

99

.23

50

930

231

E7

.01

*

Not

recorrrnended.

Use

the Divide-by-16

mode.

Notes

for Table

III(a)

and

III

(b)

1.

The

frequency of the

Timer-2

clock output

on

CB1

of the

VIA

is

given

by

fE/(2N+4),

where

fE

is

the frequency of the E-clock

and

N

is

the value in the

Timer-2

latch.

The

baud

rate is

this

frequency divided

by

1,

16, or 64, according to the divide

ratio

bits

(bits

0

and

1) in the

ACIA

control

register.

Megatel

Computer

Technologies Toronto,

Canada

Appendix

Page

A-6

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