Toshiba AS311 user manual Contents

Contents

Contents
Safety Precautions		1
About This Manual		2
1.	AS311 Overview	7
1.1	Introduction	8
1.2	AS311 functions	9
1.3	External features	10
2.	Specifications	15
2.1	General specifications	16
2.2	Functional specifications	16
2.3	Transmission specifications	17
3.	Cable Connections	19
3.1	RS-232C connection	20
3.2	RS-422 connection	21
4.	Register Configuration	23
4.1	I/O allocation and I/O registers	24
4.2	AS311 buffer memory	26
4.2.1	Memory map	26
4.2.2	Buffer memory access	27
4.2.3	Parameter area	29
4.2.4	Receiving and transmitting data area	36
5.	Operation Procedure	37
5.1	Transmission message format	38
5.2	Received message read sequence	39
5.2.1	Flag control timing	39
5.2.2	T3 sample program for message receiving	40
5.3	Write sequence for message transmitting	43
5.3.1	Flag control timing	43
5.3.2	T3 sample program for message transmitting	44
5.4	Checking the AS311 operation status	47
5.5	Resetting the AS311 by software	48
5.6	Setting the trailing code	49
5.7	Setting the time-out check time	50

4 ASCII Interface Module (AS311)