AS1163 datasheet(31/91 Pages) AMSOSRAM

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AS1163

Functional description

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The protocol does not tolerate interruptions during the telegram, above the specified duty cycle

distortion limits.

In case of 2-wire SPI mode (MCU mode Type B), an interruption up to 1 baud is tolerated.

Additional checks on received commands are available:

•

If a node receives an unknown command with telegram ID > 0x0F, a communication error

flag (STAT.CE_FLAG) will be raised.

•

If a node receives an unknown command with telegram ID <= 0x0F (OSP specific

command), no error will be raised.

6.5.1

Parallel addressing

While the OSP is natively supporting daisy chains, this device AS1163 expands support to

more complex network topologies. This is achieved using specific nodes (“parallel” node) as

branch starter and standard CAN-FD transceivers for the physical 1-to-N connection (see

Figure 11).

All parallel branches must be individually addressed by sending the initialization command

containing the address of the respective "parallel" node. After all branches are correctly

initialized, devices can be seamlessly addressed as in a simple daisy chain.

Figure 11: OSP network topologies

(1) Only bidirectional mode is possible with star network topology. Loopback mode is not supported.

AS1163 Datasheet(PDF) 31 Page - ams-OSRAM AG