Multi-Tech Systems MT5600SMI-92, MT5600SMI-XL34, MT5600SMI-P92, MT5600SMI-PL92 manual Contents

	Table of Contents
Contents
Chapter 1 – Product Description and Specifications	5
Introduction	5
Product Description	5
Features	6
Technical Specifications	7
Sources of Additional Information	7
Chapter 2 – Mechanical Specifications	8
Physical Dimensions	8
Serial Pin Configurations	9
Parallel Pin Configurations	11
Chapter 3 – Electrical Characteristics	13
Handling Precautions	13
I/O Electrical Characteristics	13
3.3V Serial SocketModem	13
3.3V Parallel SocketModem	13
5V Serial SocketModem	14
5V Parallel SocketModem	14
Operating Conditions	14
Absolute Maximum Ratings	14
Current and Power Requirements	15
Parallel Host Bus Timing	16
Parallel Host Bus Timing Table	16
Parallel Host Bus - Read	17
Parallel Host Bus - Write	17
Chapter 4 – SocketModem Parallel Interface – A Programmer’s Description	18
SocketModem Parallel Interface	18
Overview	18
Register Signal Definitions	20
IER – Interrupt Enable Register (Addr = 1, DLAB = 0)	20
FCR – FIFO Control Register (Addr = 2, Write Only)	21
IIR – Interrupt Identifier Register (Addr = 2)	22
LCR – Line Control Register (Addr = 3)	23
MCR – Modem Control Register (Addr = 4)	24
LSR – Line Status Register (Addr = 5)	25
MSR – Modem Status Register (Addr = 6)	26
RBX – RX Buffer (Receiver Buffer Register) (Addr = 0, DLAB = 0)	26
THR – TX Buffer (Transmitter Holding Register) (Addr = 0, DLAB = 0)	26
SCR – Scratch Register (Addr = 7)	27
Receiver FIFO Interrupt Operation	28
Receiver Data Available Interrupt	28
Receiver Character Timeout Interrupts	28
Transmitter FIFO Interrupt Operation	28
Transmitter Empty Interrupt	28
Chapter 5 – AT Commands, S-Registers, and Result Codes	29
Introduction	29
Data Commands	30
Generic Modem Control Commands	30
DTE-Modem Interface Commands	36
Call Control Commands	41
Modulation Control Commands	51
Error Control Commands	55
Data Compression Commands	60
V.8/V.8bis Commands	63
Diagnostic Commands	65

Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 3