AN-165

HOLT INTEGRATED CIRCUITS

6

Mode- 2

(3): ARINC 429 Data transmission directly from CPU

This example demonstrates how transmitted words can be sent immediately using SPI op codes. All 4

transmitters are looping incremental data written each time by specific op codes. The ARINC 429 words

can be viewed on J1.

The output on the console will be similar to:

Holt HI-3200 Demonstration Software Revision: X.X

Example 3: ARINC 429 Data transmission directly from CPU

Master Control Register 0xF8

ARINC Receiver Control Registers

RX0 0x81

RX1 0x81

RX2 0x81

RX3 0x81

RX4 0x81

RX5 0x81

RX6 0x81

RX7 0x81

Mode- 3

(4): ARINC 429 Data transmission using on-chip schedulers

The HI-3200 Transmitters are pre-loaded with words in their respective descriptor tables. These are

loaded after RESET. When RUN=1 data is transmitted and repeated based on each Transmitter’s

Repetition Rate register. TX0 and TX1 are transmitting high speed data. TX2 and TX3 are transmitting

low speed data.

The output on the console will be similar to:

Holt HI-3200 Demonstration Software Revision: 0.1

Example 4: ARINC 429 Data transmission using on-chip schedulers

Master Control Register 0xF8

ARINC Receiver Control Registers

RX0 0x81

RX1 0x81

RX2 0x81

RX3 0x81

RX4 0x81

RX5 0x81

RX6 0x81

RX7 0x81

ARINC Transmitter Control Registers

TX0 0x80

TX1 0x80

TX2 0xC0

TX3 0xC0