DDC NHi-15504 Manuel d'instructions - Page 4

Parcourez en ligne ou téléchargez le pdf Manuel d'instructions pour {nom_de_la_catégorie} DDC NHi-15504. DDC NHi-15504 19 pages. Multi-protocol

1.1.1 BUS CONTROLLER FEATURES

•Implements all Message Formats and Error Checking

•Major and minor frame message structure.

•Simple setup and operation. Multiple minor frames, message tables and data tables. Only

one Major Frame Pointer Register is required to control unlimited number of messages

•BC initialized by writing to three Configuration Registers and the Interrupt Mask

•Executes lists of messages via Minor Frame Pointers

•Configurable Global Retry and Message Specific Local Retry

•Programmable retries per message:

None

Retry Current Bus

Retry Alternate Bus

Retry Alternate Bus then Current Bus.

•Programmable response timeout of 14, 18, 26, or 42 microseconds.

•Programmable Intermessage Gap Time up to 4 mS with 2uS resolution.

•Programmable Synchronous Message Time up to 4mS with 2uS resolution.

•Extended Gap Time and Synchronous Message Time using NO- OP Feature.

•Programmable Minor Frame Gap with 64 us resolution.

•Programmable Interrupts for:

End of Message

End of Frame

Response Time Out, Message

Error

Message Retry

RT Status Bit Set

FIFO Overflow.

•Host controlled commands:

Start BC

Continuous Mode

Stop at End of Message

Stop at End of Frame

Abort,

GOTO Alternate Frame.

•Dynamic Message Bus Switch Upon Successful Retry.

•Synchronous or Asynchronous Messages.

•Synchronous or Asynchronous Minor Frames.

•Up to 63 autonomous data tables per message.