Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
5.6
Local Interconnect Network Interface (LIN)
The SCI/LIN module can be programmed to work either as an SCI or as a LIN. The core of the module is
an SCI. The SCI’s hardware features are augmented to achieve LIN compatibility.
an SCI. The SCI’s hardware features are augmented to achieve LIN compatibility.
The SCI module is a universal asynchronous receiver-transmitter that implements the standard nonreturn
to zero format. The SCI can be used to communicate, for example, through an RS-232 port or over a K-
line.
to zero format. The SCI can be used to communicate, for example, through an RS-232 port or over a K-
line.
The LIN standard is based on the SCI (UART) serial data link format. The communication concept is
single-master/multiple-slave with a message identification for multi-cast transmission between any network
nodes.
single-master/multiple-slave with a message identification for multi-cast transmission between any network
nodes.
5.6.1
LIN Features
The following are features of the LIN module:
•
Compatible to LIN 1.3, 2.0 and 2.1 protocols
•
Multi-buffered receive and transmit units
•
Identification masks for message filtering
•
Automatic Master Header Generation
–
–
Programmable Synch Break Field
–
Synch Field
–
Identifier Field
•
Slave Automatic Synchronization
–
–
Synch break detection
–
Optional baudrate update
–
Synchronization Validation
•
2
31
programmable transmission rates with 7 fractional bits
•
Error detection
•
2 Interrupt lines with priority encoding
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Peripheral Information and Electrical Specifications
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