Acromag, Inc. • PO Box 437, Wixom, MI 48393 • Phone: 248-624-1541 • Fax: 248-624-9234 • e-mail: sales@acromag.com • www.acromag.com

PMC Modules

PMC520

Octal Serial 232

Communication

These modules provide eight asynchronous serial

communication ports from a single PMC carrier slot.

Software-configuration helps you quickly set baud rates,

character-sizes, stop bits, and parity. Signal support for

RTS/CTS handshaking is also included.

For more efficient data processing, each serial port is

equipped with 64-character FIFO buffers on the

transmit and receive lines.

The data ports generate individually controlled transmit,

receive, line status, and data set interrupts. A global

interrupt source register provides interrupt status

indication for all eight channels to speed up interrupt

parsing.

Features

■

Eight RS232E ports

■

64-byte transmit FIFO buffers

64-byte receive FIFO buffers

■

Programmable baud rate (up to 120Kbps)

■

Individual handshake lines (RTS, CTS)

on each channel

■

Line-break and false start-bit detection

■

Industry-standard software-compatible 16C550

configuration registers

Benefits

■

High-density design lowers per-port costs and

saves PMC carrier card slots for other functions.

■

64-byte FIFO buffers minimize CPU interaction for

improved system performance.

■

Each serial channel provides handshake support to

simplify interfacing with modems.

Specifications

RS232E Serial Ports

Configuration: Independent, non-isolated serial ports with a

common single return connection and configured as a

DTE device.

Data rate: Programmable up to 120K bits/second using

internal baud rate generator.

Max. cable length: 15 meters (50 feet) typical, limited to a

cable capacitive load of 2500pF.

Character size: 5 to 8 bits, software-programmable.

Parity: Odd, even, or no parity; software-programmable.

Stop bits: 1, 1-1/2, or 2 bits; software-programmable.

Data register buffers: Double buffered or 64-byte FIFO

buffered, mode selectable.

Interrupts: Receiver line status (overrun, parity, framing error,

or break interrupt); received data available

(FIFO level reached) or character time-out; transmitter

(FIFO level reached); or modem status (CTS).

Environmental

Operating temperature: 0 to 70°C (PMC520-64) or

-40 to 85°C (PMC520-64E).

Storage temperature: -55 to 125°C.

Relative humidity: 5 to 95% non-condensing.

Power: +5V (±5%), consult factory for current specifications.

MTBF: Consult factory.

PMC Compliance

Conforms to PCI Local Bus Specification, Revision 2.3 and

CMC/PMC Specification, P1386.1.

4K Memory Space Required: One Base Address Register.

Signaling: 3.3V and 5V compliant.

Ordering Information

PMC Modules

PMC520-64

Eight RS232E serial ports, front I/O connector

PMC520-64E

Same as PMC520-64 plus extended temperature range.

PMC520-64R

Same as PMC520-64 except with rear I/O connector

PMC520-64RE

Same as PMC520-64R plus extended temperature range

Customized PMC Modules

†

5085-x

Modified PMC520-64 with user-specified crystal/baud rate.

† Specify x = crystal frequency when ordering.

Minimum quantity per order is two units.

PMCSW-API-VXW

PCISW-API-QNX

PCISW-API-WIN

5025-288

Termination panel, SCSI-3 connector,

68 screw terminals

5028-432

Cable, shielded, SCSI-3 connector both ends

With eight serial ports per module, the PMC520 provides a high-density solution to reduce costs and use fewer card slots.

8400-386 Printed in USA 7/04 Copyright © 2004 Acromag, Inc. Data subject to change without notice

All trademarks are the property of their respective owners.

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