B&B Electronics PCMCIA 232PCC2 Benutzerhandbuch

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Documentation Number 232PCC23799 Manual 
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