B&B Electronics PCMCIA 232PCC2 - Manual (Page 3)

Documentation Number 232PCC23799 Manual 1
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353-91-792444 – Fax +353-91-792445
Chapter 1: Introduction
B&B Electronics 232PCC2 provides two independent RS-232
asynchronous serial communications interfaces for systems
equipped with PCMCIA Type II and/or Type III expansion sockets.
The 232PCC2 is a PCMCIA Type II (5 mm) card and is PCMCIA PC
Card Standard Specification 2.1 compliant.
The 232PCC2's serial ports are implemented using 16C550
Universal Asynchronous Receiver/Transmitters (UARTs) that are the
recommended communications interface for multitasking
environments and applications involving high data transfer rates.
The 232PCC2’s two serial ports are addressable in two modes:
1. Block Mode: The two serial ports are configured in one 16-byte
continuous block of I/O address space. The block must begin
on an even 16-byte division. Both serial ports share one IRQ
level.
2. COM Mode: The two serial ports are configured at the standard
COM port I/O address location. The ports may be configured as
COM1 and COM3; also, the ports may be configured as COM2
and COM4. Both serial ports share one IRQ level.
A special interrupt status register is also available to simplify the
software required to service multiple serial ports in an interrupt
driven environment. See the Hardware Information section for
details.
NOTE: When installed, a 232PCC2 appears as a DSP-100 by
Quatech, Inc.
Specifications
Bus Interface: PCMCIA
PC Card Standard 2.1 compliant
Physical Dimensions: Type II PCMCIA card (5mm)
Maximum Baud Rate: 120K
Power Requirements: +5 V, 35.9 mA typical, 45.9 mA maximum
Connector: Adapter to 2 standard male D-9