[BST bus]
[byteflight]
[CAN bus]
[D2B]
[DSI bus]
[FlexRay]
[IDB-1394]
[IEBus]
[Intellibus]
[J1708 bus]
[J185 bus]
[LIN bus] [MEC bus]
[MI bus]
[MML bus]
[MOSTbus]
[OBDII]
[SMARTwireX]
[Bus Information Page]
[Home Page]
Distributed System Interface [DSI] was developed by Motorola [Freescale]
as a dedicated safety bus.
The DSI is a niche area network (NAN) designed to interconnect multiple remote sensor and actuator
devices to a central control module.
DSI is a two-wire serial bus linking
safety-related sensors and components in vehicles, air-bags for example.
The DSI bus uses a 3-level voltage scheme in a Master/Slave access
approach.
Idle voltage is 7 volt min, High voltage 4.175v min, and low voltage 1.675 max.
Data speed is up to 4Kbps [minimum], and a 4 bit CRC. [single bit time is 200uS max]
The lines are DSI Bus Input [BUSin], DSI Bus Output [BUSout], and Bus Return [BUSRTN].
DSI messages are composed of individual words separated by a frame delay. Transfers are full duplex at a minimum data rate of 5bps [no maximum is set]. Command messages from the master occur at the same time as responses from the slaves. Slave responses to commands occur during the next command message.
The maximum number of nodes allowed is 16, 1 Master with 15 Slaves.
DSI Bus Standard; Version 2.02, March 2005
Note; Motorola span off its Integrated Circuit side into a new company called Freescale
Electronic Engineering Design Key words: Automotive Buses, DSI, Auto Bus types, Motor vehicle Bus Standard, Passenger cars, Interface Standard Data Bus, Specification, Spec, Interface, IC, Physical Interface, VFB, Topology, Description, Physical Interface, niche area network, ECU, Automotive, Auto, Car, carmaker, Cable Buses, Diagnostics.
|
|
|||||||
| Home | |||||||
|
|
|||||||
|
|
|
|
|
|
|
|
|
| Distributors | Components | Equipment | Software | Standards | Buses | Design | Reference |