AS8201 データシートの表示（PDF） - austriamicrosystems AG

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AS8201

TTP/C-C1 Communications Controller

austriamicrosystems AG 

TTP/C-C1 Communications Controller Data Sheet

AS8201

Austria Mikro Systeme International AG

Key Features

• First dedicated controller supporting TTP/C (time triggered protocol class C)

• Device for building up TTP/C nodes in a TTP/C local area networks (clusters).

• Suited for dependable distributed real-time systems with guaranteed response time

• application examples:

automotive: braking, steering, vehicle dynamics control, drive train control

industry: air plane flap control, rail way points

• Bit data rate 2 Mbits/s @ clock 20 MHz, 5.0V

• Fabricated in 0.6u CMOS process, automotive temperature range of -40 to 125deg C

• 1k x 16 RAM message, status and control area

• RAM for instruction code and configuration data

• 16 bit non-multiplexed host CPU interface

• 16 bit RISC architecture

• external firmware (FLASH memory) conforming the TTP/C specification

• automatic booting after power on

• software tools, design-in support, development boards available ( http://www.tttech.com)

• 120 pin PQFP Package

Description

The TTP/C-C1 communications controller is the first integrated device supporting serial

communication according to the TTP/C specification (time triggered protocol class C). It

performs all communications tasks such as reception and transmission of messages in a

TTP/C cluster without interaction of the host CPU.

TTP/C provides mechanisms that allow the deployment in high-dependability distributed real-

time systems. It provides the following services:

• predictable transmission of messages with minimal jitter

• fault-tolerant distributed clock synchronisation

• consistent membership service with small delay

• masking of single faults

Host

processor

Interface

RAM_DATA[15:0]

RAM_ADDRESS[10:0]

RAM_CEB

RAM_OEB

RAM_WEB

RAM_READYB

TIME_OVERFLOW

TIME_SIGNAL

TIME_TICK

Quarz or

Oscillator

MICROTICK

XENA0

XIN0

XOUT0

RESETB

Boot ROM

Interface

ROM_ADDRESS[16:0]

ROM_DATA[15:0]

ROM_RESETB

ROM_CEB

ROM_OEB

ROM_WEB

ROM_READY

Controller

network

interface

(CNI)

TTP/C-C1

protocol

processor core

Reset &

Time

base

Receiver

Bus

guardian

Transmitter

Instruction

memory

Network

configuration

memory

(MEDL)

RXD[1:0]

BDE[1:0]

XENA1

XIN1

XOUT1

TXD[1:0]

CTS[1:0]

OE[1:0]

TTP/C

bus -

Meadia

Drivers

TEST_SE Test

FTEST Inter-

FTEST_IEN face

LED[7:0]

Figure 1 Block Diagramm

Rev. NC, October 1999

Page 2 of 13

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