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Issue 1.0.1

2017-10-12

TEWS TECHNOLOGIES GmbH

Am Bahnhof 7

25469 Halstenbek, Germany

Phone: +49 (0) 4101 4058 0

Fax: +49 (0) 4101 4058 19

e-mail: info@tews.com

www.tews.com

The Embedded I/O Company

TCP866 8 Channel Serial Interface RS232 / RS422

Application Information

The TCP866 is a standard 3U 32 bit CompactPCI module

and has eight channels of high performance asynchronous

serial interface with front I/O and back I/O.

The TCP866-1x offers an 8 channel RS232 interface and

supports Receive Data (RxD), Transmit Data (TxD),

Ready-To-Send (RTS), Clear-To-Send (CTS) and GND for

each channel. Additionally serial channel one and serial

channel

two

provide

Data-Set-Ready

(DSR),

Data-

Terminal-Ready (DTR), Data-Carrier-Detect (DCD) and

Ring-Detect-Indicator (RI).

The TCP866-2x supports an 8 channel RS422 interface

and offers RS422 signal levels by differential transmitters

and receivers. The Transmit data (TxD +/-), Receive Data

(RxD +/-) and GND are provided for each serial channel.

The receiver signal termination (120 ohms between RxD+

and RxD-) is provided on the TCP866 per channel.

Each serial channel of the TCP866 has a 64 byte transmit

FIFO and a 64 byte receive FIFO to significantly reduce

the overhead required to provide data to and get data from

the transmitter and receivers. The FIFO trigger levels are

programmable.

For all modules the baud rate is individually programmable

up to 921.6 kbaud per channel. All channels use the

CompactPCI interrupt INTA together. For fast interrupt

source

detection

the

TPMC866

provides

a

special

interrupt status register. Receiver and transmitter are

protected against electrostatic discharge (ESD).

Software Support (TCP866-SW-xx) for different operating

systems is available.