hi-3200 Holt Integrated Circuits, Inc., hi-3200 Datasheet - Page 35

• Manufacturer Part Number: hi-3200
• Description: Avionics Data Management Engine / Arinc 429 - Can Bus Bridge
• Manufacturer: Holt Integrated Circuits, Inc.

Type 2 CAN transmit descriptors use a pre-loaded 256
entry common look-up table to define the CAN ID field of
the transmitted frame.
Type 3 CAN transmit descriptors are used when
transmitting frames using CAN Identifier and Data
payload extracted from the ARINC 429 Received Data
RAM, CAN Bus Received Data RAM, or host CPU / Auto-
initialization EEPROM loaded values.
Type 2 CAN Transmit Descriptor Frame Format
Type 3 CAN Transmit Descriptor Frame Format
Type 2 Descriptor Header Byte
Type 2 Descriptor Block
Data Byte 2 Action Byte
Data Byte 2 Value Byte
Data Byte n Value Byte
Data Byte n Action Byte
Data Byte 1 Value Byte
Data Byte 1 Action Byte
ID Table Entry # (0 - FF)
Type 3 Descriptor Header Byte
Type 3 Descriptor Block
Data Byte n Value Byte
Data Byte n Action Byte
Data Byte 1 Value Byte
Data Byte 1 Action Byte
CAN ID1 Action Byte
CAN ID1 Value Byte
CAN ID3 Action Byte
CAN ID3 Value Byte
CAN ID2 Action Byte
CAN ID4 Action Byte
CAN ID2 Value Byte
CAN ID4 Value Byte
}
0x7C08
0x7C04
0x7C00
0x7FFF
0x7FF8
HOLT INTEGRATED CIRCUITS
}
}
}
}
}
HI-3200, HI-3201
Type 2 ID Look-up Table
Source pointer for
Source pointer for
Source pointer for
Source pointer for
ID Entry 255
ID Entry 2
ID Entry 1
ID Entry 0
35
CAN Data Byte values may be directly loaded from the
host CPU / Auto-initialization EEPROM, or are read from
the ARINC 429 Received Data RAM or CAN Bus
Received Data RAM as indexed by the two data source
descriptor bytes (op-code byte and index byte).
ID20 to ID18, SRR, IDE, ID17 to ID15
ID6 to ID0, r0
ID14 to ID7
ID28 to ID21
ID20 to ID18, SRR, IDE, ID17 to ID15
Type 2 ID Table Entry
ID6 to ID0, r0
ID28 to ID21
ID14 to ID7