AS8202B Overview
The AS8202B munication controller is an integrated device supporting serial munication according to the TTP specification version 1.1. It performs all munication tasks such as reception and transmission of messages in a TTP cluster without interaction of the host CPU. TTP provides mechanisms that allow the deployment in high-dependability distributed real-time systems.
AS8202B Key Features
- Dual-channel controller for redundant data transfers -Dedicated controller supporting TTP (time-triggered protocol
- 40 MHz oscillator clock support
- 16 MHz bus guardian clock with support for 16 MHz crystal or 16 MHz oscillator
- Single power supply 3.3V, 0.35µm CMOS process
- Full automotive temperature range (-40ºC to 125ºC)
- 16k x 16 SRAM for message, status, control area (munication network interface) and for scheduling information (MEDL)
- 4k x 16 (plus parity) instruction code RAM for protocol execution code
- Datasheet conforms to protocol revision 2.05
- 16k x 16 instruction code ROM containing startup execution code and deprecated protocol code revision 1.00
- 16-bit non-multiplexed asynchronous host CPU interface
