
5-185
Pin Description
PIN
SYMBOL
SECTION
DESCRIPTION
1
V
CC
Recs/Trans
Supply pin 5 volts
±
5%.
2
429 DI1 (A)
Receiver
ARlNC 429 data input to Receiver 1.
3
429 DI1 (B)
Receiver
ARlNC 429 data input to Receiver 1.
4
429 Dl2 (A)
Receiver
ARINC 429 data input to Receiver 2.
5
429 DI2 (B)
Receiver
ARINC 429 data input to Receiver 2.
6
D/R1
Receiver
Device ready flag output from Receiver 1 indicating a valid data word is ready to be fetched.
7
D/R2
Receiver
Device ready flag output from Receiver 2 indicating a valid data word is ready to be fetched.
8
SEL
Receiver
Bus Data Selector - Input signal to select one of two 16-bit words from either Receiver 1 or 2.
9
EN1
Receiver
Input signal to enable data from Receiver 1 onto the data bus.
10
EN2
Receiver
Input signal to enable data from Receiver 2 onto the data bus.
11
BD15
Recs/Trans
Bi-directional data bus for fetching data from either of the Receivers, or for loading data into
the Transmitter memory or control word register. See Control Word Table for description of
Control Word bits.
12
BD14
Recs/Trans
See Pin 11.
13
BD13
Recs/Trans
See Pin 11.
14
BD12
Recs/Trans
See Pin 11.
15
BD11
Recs/Trans
See Pin 11.
16
BD10
Recs/Trans
See Pin 11.
17
BD09
Recs/Trans
See Pin 11.
18
BD08
Recs/Trans
See Pin 11.
19
BD07
Recs/Trans
See Pin 11.
20
BD06
Recs/Trans
See Pin 11.
21
GND
Recs/Trans
Circuit Ground.
22
BD05
Recs/Trans
See Pin 11.
23
BD04
Recs/Trans
See Pin 11. Control Word function not applicable.
24
BD03
Recs/Trans
See Pin 11. Control Word function not applicable.
25
BD02
Recs/Trans
See Pin 11. Control Word function not applicable.
26
BD01
Recs/Trans
See Pin 11. Control Word function not applicable.
27
BD00
Recs/Trans
See Pin 11. Control Word function not applicable.
28
PL1
Transmitter
Parallel load input signal loading the first 16-bit word into the Transmitter memory.
29
PL2
Transmitter
Parallel load input signal loading the first 16-bit word into the Transmitter memory and initiates
data transfer into the memory stack.
30
TX/R
Transmitter
Transmitter flag output to indicate the memory is empty.
HS-3282