Features: •Fully Compliant to VAN Specification ISO/11519-3
•Handles All Specified Module Types
•Handles All Specified Message Types
•Handles Retransmission of Frames on Contention and Errors
•3 Separate Line Inputs with Automatic Diagnosis and Selection
•Normal or Pulsed (Optical and Radio Mode) Coding
•VAN Transfer Rate: 1 Mbit/s Maximum
•SPI/SCI Interface
SPI Transfer Rate: 4 Mbit/s Maximum
SCI Transfer Rate: 125 Kbit/s Maximum
•Idle and Sleep Modes
•128 Bytes of General-purpose RAM
•14 Identifier Registers with All Bits Individually Maskable
•6-source Maskable Interrupt, Including an Interrupt-on-reset to Detect Glitches
on the Reset Pin
•Integrated Crystal or Resonator Oscillator with Internal Baud Rate Generator
and Buffered Clock Output
•Single +5V Power Supply
•0.8 m CMOS Technology
•SO16 PackageApplicationThe TSS463AA is a microprocessor controlled line controller for the VAN bus. It can interface to virtually any microprocessor which includes SPI or SCI interface.
•The TSS463AA provides one full Motorola compatible SPI interface.
•It includes one full compatible Intel UART (mode 0 only).
•And finally, one 9-bits SCI interface is also integrated.
In addition, the circuit features a single interrupt pin. This pin can be treated as level sensitive. For example, if there is a pending interrupt inside the circuit when another interrupt is reset, the INT pin will emit a high pulse with the same pulse width as the internal write strobe (typically 20 ns).
Pinout
SpecificationsAutomotive.......................................-40 to 125
Storage Temperature........................-65 to 150
Voltage on VCC to VSS .......................-0.5 to +7.0V
Voltage on any pin to VSS ........-0.5V to VCC +0.5V
*NOTICE:Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions exceeding those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions may affect device reliability.
DescriptionThe TSS463-AA is a circuit that allows the transfer of all the status information needed in a car or truck over a single low-cost wire pair, that minimizes electrical wire usage. It can be used to interconnect powerful functions to control and interface car body electronics (lights, wipers, power window, etc.).
The TSS463-AA is fully compliant with the VAN ISO Standard 11519-3. This standard supports a wide range of applications such as low-cost remote-controlled switches. Typically it is used for lamp control, complex, highly-autonomous, distributed systems, which require fast and secure data transfers.
The TSS463-AA is a microprocessor-interfaced line controller for mid- to high-complexity bus-masters and listeners like dashboard controllers, car stereo or mobile telephone CPUs.
The microprocessor interface consists of a 256-byte RAM and a register area divided into 11 control registers, 14 channel register sets and 128 bytes of general purpose RAM, used as a message storage area, and a 6-source maskable interrupt.
The circuit operates in the RAM using DMA techniques, controlled by the channel and control registers. This allows virtually any microprocessor, including SPI/SCI interface, to be connected easily to the TSS463-AA.
Messages are encoded in enhanced Manchester code, and an optional pulsed code for use with an optical or radio link, at a maximum bit rate of 1 Mbit/s. The TSS463AA analyzes the messages received or transmitted according to 6 different criteria including some higher level checks.
In addition, the bus interface has three separate inputs with automatic source diagnosis and selection. The interface allows for multibus listening or the automatic selection of the most reliable source at any time if several line receivers are connected to the same bus.
TSS463-AA Data Sheet
