HI-3282PJI HOLTIC [Holt Integrated Circuits], HI-3282PJI Datasheet - Page 6

• Manufacturer Part Number: HI-3282PJI
• Description: ARINC 429 SERIAL TRANSMITTER AND DUAL RECEIVER
• Manufacturer: HOLTIC [Holt Integrated Circuits]

REPEATER OPERATION
The repeater mode of operation allows a data word that has been
received by the HI-3282 to be placed directly into its FIFO for
transmission. After a 32-bit word has been shifted into the receiver
shift register, the
line and
receiver operation and it places the lower byte (16) of the data word
on the d a t a bus.
429DO
429DO
EN
is strobed. This is the same procedure as for normal
D/R
DATA BUS
DATA BUS
CWSTR
flag will go low. A logic "0" is placed on the SEL
DATA
ARINC BIT
BIT 30
By strobing
NULL
t
DATA
D/R
P L 1
BIT 31
NULL
at the same
HOLT INTEGRATED CIRCUITS
t
ENDATA
t
D/REN
t
CWSTR
t
SELEN
DATA
t
CWSET
HI-3282
BIT 32
VALID
6
time as
SEL is then taken high and
byte of the data word on the data bus. By strobing
time as
data word is now ready to be transmitted according to the parity
programmed into the control word register.
In normal operation, either byte of a received data word may be read
from the receiver latches first by use of SEL input. During repeater
operation however, the lower byte of the data word must be read
first. This is necessary because, as the data is being read, it is also
being loaded into the FIFO and the transmitter FIFO is always
loaded with the lower byte of the data word first.
NULL
t
ENSEL
EN
EN
t
CWHLD
, the second byte will also be placed into the FIFO. The
, the byte will also be placed into the transmitter FIFO.
t
DATAEN
WORD GAP
t
ENEN
t
ENDATA
EN
t
SELEN
is strobed again to place the upper
t
END/R
t
EN
NEXT WORD
BIT 1
t
ENSEL
PL2
at the same
t
DATAEN