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ISL40

更新时间： 2024-11-20 05:39:39

品牌	Logo	应用领域
YAMAR		通信
页数	文件大小	规格书
12页	165K
描述
Independent DC-LIN Slave For Asynchronous Communication Over Noisy Lines

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ISL40 数据手册

Proprietary and Confidential Information of YAMAR Electronics Ltd.

ISL40 - Independent DC-LIN Slave

For Asynchronous Communication

Over Noisy Lines

YAMAR

Electronics Ltd

Preliminary Data Sheet

This information is preliminary and may be changed without notice

GENERAL

The ISL40 is an innovative VLSI solution for low cost network of I/O peripheral devices communicating

over a noisy single wire or a battery power line using the LIN protocol. It provides the means for an

economical network of multiple slave devices for applications as controlling motors, reading sensors

etc., eliminating the need for a dedicate controller for slave modules.

The device operates as an independent LIN slave in a network controlled by a SIG40 master device,

which transmits five types of messages to each one of its slaves; Read, Read Change, Write, Sleep

and Change Frequency.

The ISL40 slave device identifies a LIN message addressed to its predefined ID. When a Write

message is received, the data part of the message is directed to the corresponding 4 or 8 output pins.

When a Read or Read Change message is detected, the slave responds with a LIN2.0 message that

contains information on all its 8 inputs or 4 input pins and 4 output pins.

A Sleep command enables power saving. Wakeup messages awaken remote devices.

The device is based on an original multiplex signaling technology. The ISL40 has a LIN message

handler, a unique signaling modem and coder/decoder that overcome the hostile communication

environment over vehicle battery lines.

The ISL40 capability of communicating over battery-powered line is useful for a wide range of vehicular

and industrial applications, such as doors, seats, mirrors, climate control, lights etc.

Master

Slave

ISL40

ECU

8/4 Inputs

4/8 Outputs

ISL40

SIG40

DC Line

Figure 1.1 - Typical ISL40 Applications

OVERVIEW

2.1

Signaling System

The ISL40 device operates as an independent slave in a network controlled by a SIG40 master device

that can transmit asynchronous LIN messages to any one of its 15 slave devices. An ISL40 slave device

which identifies a Write message addressed to its ID, takes the data part of the message and outputs it

to its output pins, while a master Read message is responded by the slave with a message consisting of

its sampled input pins. The device receives and transmits special narrow band signaling carrier, which

can be differentiated from noise. The receiver receives the signaling patterns, extracting them into the

original bits. The rest of the spectrum is reserved for additional communication channels over the same

DC noisy lines.

DS-ISL40 R1.6

12 3 4 5 6 7...12

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