TSS461F ATMEL Corporation, TSS461F Datasheet

TSS461F

Manufacturer Part Number

TSS461F

Description

VAN Data Link Controller

Manufacturer

ATMEL Corporation

Datasheet

1.TSS461F.pdf (57 pages)

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Part Number:

TSS461F-9

Manufacturer:

ATMEL/爱特梅尔

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Features

•

Description

Cost optimization in car manufacturing is of extreme importance today. Solutions to

this problem often implies the use of more advanced and intelligent electronic circuits.

The TSS461F is a circuit which allows the transfer of all the status information needed

in a car or truck over a single low-cost wire pair, thereby, minimizing the electrical wire

usage.

It can be used to interconnect powerful functions (ABS, dashboard, power train con-

trol) and to control and interface car body electronics (lights, wipers, power window,

etc.).

The TSS461F is fully compliant with the ISO standard 11519-3. This standard sup-

ports a wide range of applications such as low-cost remote control switches, typically

used for lamp control; complex, highly-autonomous, distributed systems like engine

controls, which require fast and secure data transfers.

The TSS461F is a microprocessor-interfaced line controller for mid-to-high complexity

bus-masters and listeners like injection/ignition control calculators, dashboard control-

lers and car stereo or mobile telephone CPUs.

The microprocessor interface consists of a 256-bytes of RAM and the register area is

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 RAM using DMA techniques, controlled by the channel and

control registers. This allows virtually any microprocessor to interface with ease to the

TSS461F, and to use the free RAM as a scratch pad.

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 TSS461F

analyzes the messages received or transmitted according to 6 different criteria includ-

ing some higher level checks.

In addition, the bus interface has three separate inputs with automatic source diagno-

sis and selection, allowing 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.

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

1 Mbit/s Maximum Transfer Rate

Normal or Pulsed (Optical and Radio Mode) Coding

Intel

Interface

Multiplexed Address and Data Bus

Idle and Sleep Modes

128 Bytes of General-purpose RAM

DMA Capabilities for Message Handling

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

0.5 mm CMOS Technology

SOP 24 Packaging

, NEC

, Texas Instruments

and Motorola

Compatible 8-bit Microprocessor

VAN Data Link

Controller

TSS461F

7615A–AUTO–02/06

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