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DD-00429 Datasheet Preview

DD-00429 Datasheet

ARINC 429 Microprocessor Interface

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DD-00429
ARINC 429 MICROPROCESSOR
INTERFACE
DESCRIPTION
DDC's DD-00429 provides a complete and flexible interface between
a microprocessor and an ARINC 429 data bus. The DD-00429 inter-
faces to a processor through a 128 x 32 bit static ram as well as four
32 x 32 receive FIFOs and two 32 x 32 transmit FIFOs. The DD-
00429 can be easily interfaced to 8- or 16-bit processors via a
buffered shared RAM configuration.
The DD-00429, when configured with two Transceivers, supports four
ARINC 429 Receive channels (Rx0, Rx1, Rx2 and Rx3) each receiv-
ing data independently. The receive data rates (high or low speed) for
channel Rx0 and Rx1 can be programmed independently from Rx2
and Rx3. The DD-00429 can decode and sort data based on the
ARINC 429 Label and SDI bits via the Data Match Processor, and
store it in RAM and/or FIFOs via the Data Store Processor.
The DD-00429, when configured with two Line Drivers, supports two
ARINC 429 Transmit channels (Tx0 and Tx1) and can transmit data
independently. The transmit data rate can also be programmed inde-
pendently. There are two 32 x 32 bit FIFOs for each of the transmit-
ters that send out data.
The DD-00429 has the capability of programming three general pur-
pose interrupts as well as generating an interrupt based on an error
condition. The general purpose interrupts can be programmed to trig-
ger other external hardware. They can either be LEVEL or PULSE
driven.
The features built into the DD-00429 enable the user to off-load the
host processor and use that processing time to implement operations
other than polling the ARINC 429 Bus. The decoding and sorting of
data allows the user to gather data much quicker than past designs.
If the user requires a microprocessor in the avionics box, this device
will facilitate a clean and quick design.
Data Device Corporation
105 Wilbur Place
Bohemia, New York 11716
631-567-5600 Fax: 631-567-7358
www.ddc-web.com
Make sure the next
Card you purchase
has...
®
FEATURES
• Four ARINC 429 Receive Channels,
(configured with Transceivers)
• Two ARINC 429 Transmit Channels
(configured with Drivers)
• 128 x 32 Shared RAM Interface
• Label and Destination Decoding and
Sorting
• Two 32 x 32 Transmit FIFO's
• Four 32 x 32 Receive FIFO’s
• Interfaces Easily to 8- or 16-Bit
Microprocessor
• Built-in Fault Detection Circuitry
• Free “C” Library Software
• Application Note AN/A-6 “FAQ’s”
FOR MORE INFORMATION CONTACT:
Technical Support:
1-800-DDC-5757 ext. 7234
All trademarks are the property of their respective owners.
© 1998, 1999 Data Device Corporation




Data Device Corporation

DD-00429 Datasheet Preview

DD-00429 Datasheet

ARINC 429 Microprocessor Interface

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A1OUT
B1OUT
DD-03182
LINE
DRIVER
A2OUT
B2OUT
DD-03182
LINE
DRIVER
ARINC 429
RECEIVE 0
ARINC 429
RECEIVE 1
ARINC 429
RECEIVE 2
ARINC 429
RECEIVE 3
ARINC 429
TRANSMIT 0
ARINC 429
TRANSMIT 1
2
2
ARINC 429
WRAPAROUND Rx0 LOGIC
WRAPAROUND
ARINC 429
Rx1 LOGIC
WRAPAROUND
ARINC 429
Rx2 LOGIC
WRAPAROUND
ARINC 429
Rx3 LOGIC
ARINC 429
Tx0 LOGIC
ARINC 429
Tx1 LOGIC
DD-03182 LINE DRIVER (x2)
DD-03282 TRANSCEIVER (x2)
Rx DATA
Tx FIFO
32 WORDS
Tx FIFO
32 WORDS
128 X 16
STATIC RAM
DMT RAM
CTRL DATA ADDR
128 X 32
STATIC RAM
Rx RAM
CTRL DATA ADDR
DATA
MATCH
PROCESSOR
DATA ADDR
DMP
DATA
ADDR
ADDR
DATA
DATA
DATA
STORE
PROCESSOR
DATA ADDR
Rx0 FIFO
32 WORDS
Rx1 FIFO
32 WORDS
Rx2 FIFO
32 WORDS
Rx3 FIFO
32 WORDS
DATA
INTERRUPT
CONTROLLER
3
CPU INTERFACE
16 12
IRQ DATA ADDR CONTROL
MICROPROCESSOR
OR CPU
DD-00429 FP/VP ASIC
FIGURE 1. CHIP SET BLOCK DIAGRAM


Part Number DD-00429
Description ARINC 429 Microprocessor Interface
Maker Data Device Corporation
Total Page 8 Pages
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