HS-3282
Pin Description (Continued)
PIN
31
32
33
34
SYMBOL
429D0
SECTION
Transmitter
Transmitter
Transmitter
Recs/Trans
DESCRIPTION
Data output from Transmitter
Data output from Transmitter.
429D0
ENTX
Transmitter Enable input signal to initiate data transmission from FIFO memory.
CWSTR
Control word input strobe signal to latch the control word from the databus into the control
word register.
35
36
37
-
-
-
No connection. Must be left open.
-
No connection. Must be left open or tied low but never tied high.
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
39
TXCLK
MR
Transmitter
Recs/Trans
Transmitter Clock output. Delivers a clock frequency equal to the transmitter data rate.
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.
Pinout
20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
NC NC NC
5-186
INTERSIL [ Intersil ]
