ARX2412
Data Terminal Manchester Converter
for MIL-STD-1553
Features
鈥?PERFORMS FUNCTIONS COMMON TO MIL-STD-1553
鈥?ENCODE
鈥?DECODE
鈥?ADDRESS RECOGNITION
鈥?THREE STATE PARALLEL I/O
鈥?SELF TEST CAPABILITY
鈥?MIL-PRF-38534 COMPLIANT CIRCUITS AVAILABLE
鈥?SMALL SIZE 鈥?REPLACEMENT FOR DDC8937 MODEL NUMBER
鈥?5V DC OPERATION
鈥?FULL MILITARY (-55擄C TO +125擄C) TEMPERATURE RANGE
1
A E
RO
F
LE
X
LA
C
ISO
9001
E
RT
I
F
I
E
D
B
S
I
NC
.
General Description
The Aeroflex Circuit Technology Model ARX2412 Manchester Converter is a self contained, 48pin,
triple-in-line hybrid package designed to perform: encode, decode, logic and control functions in a
MIL-STD-1553, A and B multiplex data system. It Provides the necessary interface between transceivers and
a three state parallel 16 bit bus of the protocol logic section of a subsystem remote terminal or controller.
RECEIVER
SECTION
POC POWER ON CLEAR
RECEIVER SYNC TYPE
BUSY RECEIVE
OWN ADDRESS 5 BITS
B0-B4, MSB-LSB
COMMAND SYNC CLEAR
(ADDRESS REGISTER CLEAR)
VU INT
(VALID ADDRESS)
SYNC
BUSY
5 BITS
RX DATA
IN
DECODER
ADDRESS
RECOGNITION
REGISTER
BITS 0-4
VALID
CLK
VALID
ADDRESS
REGISTER
VALID
WORD
REGISTER
RX DATA
IN
VALID
WORD
CLK
CLK CLOCK
SERIAL SERIAL
DATA
OUT
BITS 0-4
SERIAL TO
PARALLEL
SHIFT
REGISTER
BITS 5-15
VALID WORD
3 STATE ENABLE
3 STATE LATCHES
AND BUFFER
3 STATE OUT
SACK
(SYSTEM ACKNOMLEDGE)
CLK1
OUTPUT
12MHZ
CLOCK 1
INPUT
12MHZ
CLOCK 2
INPUT
12MHZ
CLOCK
SELECT
SELECT
CLOCK
LOGIC
RESET
16 BITS
TO / FROM 16 BIT PARALLEL BUS
BITS DB0 - DB15
MSB - LSB
TX DATA
SERIAL
IN
OUT
CLK
ENCODER
SERIAL
DATA
CLOCK
PARALLEL
TO SERIAL
SHIFT
REGISTER
ENABLE
3 STATE IN
3 STATE LATCHES
AND BUFFER
3 STATE ENABLE
OSEL
(OUTPUT SELECT)
TRANSMITTER BUSY
SYNC SELECT
ENCODER ENABLE
TX DATA
TRANSMITTER
SECTION
BUSY
OUT SYNC
ENABLE
Figure 1 鈥?FUNCTIONAL BLOCK DIAGRAM
eroflex Circuit T
echnology
鈥?Data Bus Modules For The Future 漏 SCD2412 REV C 10/19/98