5-186

Pinout

31

429D0

Transmitter

Data output from Transmitter

32

429D0

Transmitter

Data output from Transmitter.

33

ENTX

Transmitter

Transmitter Enable input signal to initiate data transmission from FIFO memory.

34

CWSTR

Recs/Trans

Control word input strobe signal to latch the control word from the databus into the control

word register.

35

-

-

No connection. Must be left open.

36

-

-

No connection. Must be left open or tied low but never tied high.

37

CLK

Recs/Trans

External clock input. May be either ten (10) or eighty (80) times the data rate. If using both

ARINC data rates it must be ten (10) times the highest data rate, (typically 1MHz).

38

TXCLK

Transmitter

Transmitter Clock output. Delivers a clock frequency equal to the transmitter data rate.

39

MR

Recs/Trans

Master Reset. Active low pulse used to reset FIFO, bit counters, gap timer, word count signal,

TX/R and various other flags and controls. Master reset does not reset the control word

register. Usually only used on Power-Up or System Reset.

40

-

-

No Connection.

PIN

SYMBOL

SECTION

DESCRIPTION

28

40

39

38

37

36

35

34

33

32

31

30

29

27

26

25

24

23

22

21

13

1

2

3

4

5

6

7

8

9

10

11

12

14

15

16

17

18

19

20

NC

NC

NC

HS-3282