ARX2412 Aeroflex Circuit Technology, ARX2412 Datasheet - Page 5

• Manufacturer Part Number: ARX2412
• Description: Arx2412 Data Terminal Manchester Converter For Mil-std-1553
• Manufacturer: Aeroflex Circuit Technology

Aeroflex Circuit Technology
SYSTEM ACKNOWLEDGE
RECEIVER SYNC TYPE
ENCODER ENABLE
POWER ON CLEAR
TX DATA (OUTPUT)
TX DATA (OUTPUT)
POWER ON CLEAR
OUTPUT SELECT
VU INT (OUTPUT)
COMMAND SYNC
RECEIVER BUSY
RX DATA (INPUT)
RX DATA (INPUT)
VALID ADDRESS
SYNC SELECT
CLEAR (INPUT)
1MHZ CLOCK
POC (INPUT)
BIT TIMES
SACK (INPUT)
XMTR BUSY
1MHZ CLOCK
VALID WORD
POC (INPUT)
(OUTPUT)
(OUTPUT)
BIT TIMES
(OUTPUT)
(OUTPUT)
(INPUT)
(INPUT)
(INPUT)
1µs NOM
Figure 3 – TRANSMITTER SECTION TIMING FOR ENCODE OPERATION
3.5µs
NOM
Figure 2 – RECEIVER SECTION TIMING FOR DECODE OPERATION
Note: A Command Sync Clear must be provided for
COMMAND
1
SYNC
every Receiver Sync Type low to high transition.
(OR DELAY)
2
NOM
NOM
1µs NOM 100ns MIN
COMMAND
5µs
5µs
1
1
3
SYNC
0.5 µs MAX
2
2
1.0 µs MIN
4
1.0 µs MIN
3
3
5 BIT
ADDRESS
0
5
0
4
4
6
0
5 - - - -
0
5
7
0
6
0
XMTR Busy To Stop Next Word
1
8
7
Drop Enable 1µs MIN Before
0
9 10 11 12 13 14 15 16 17 18 19 20 1
0
8
DON’T CARE
1
0
9 10 11 12 13 14 15 16 17 18 19 20 1
0
SEND DATA
16µs NOM
0
COMMAND SYNC
0
DO NOT CUE FROM VALID WORD
0
TAKE DATA
1
16µs NOM
16µs NOM
0
1
0
1
0
0
1
0
0
0
500ns NOM
500ns NOM
100 ns MIN
0
0
5
0
1
1
1
BRING LOW NO LATER THAN XMTR BUSY HIGH TO LOW
1
NOM
4µs
DATA
SYNC
SYNC
DATA
2
µS
2
2
3
NOM
4µs
3
4
4
0
5
5
0
6
25ns MIN to 1µs MAX
2µs NOM
2µs NOM
6
1
7
7
1
8
1
8
9 10 11 12 13 14 15 16 17 18 19 20 1
1
9 10 11 12 13 14 15 16 17 18 19 20 1
50ns MIN to 20µs MAX
SEND DATA
16µs NOM
1
SCD2412 REV C 10/19/98 Plainview NY [phone]
0
DATA SYNC
TAKE DATA
0
16µs NOM
16µs NOM
0
0
1
0
1
1
1
0
2
2
3
3
100ns
4
MIN
4
5
6