FORCE PMC422FP versatile Eight Port Serial Controller

Description

The relevant information of PMC422FP can be summarized as follows:

1、 Product Overview

PMC422FP is a multifunctional eight port serial controller implemented in PCI mezzanine card (PMC) format. Its signal characteristics for each port can be controlled for RS232, RS422, or RS485 operation (some specific models may not be applicable). This controller implements a serial interface through octal UART, is compatible with the most commonly used components (16C550 compatible register set), and fully supports PCI properties (such as 32-bit data transfer), thereby improving performance.

2、 Technical characteristics

8 independent serial channels, programmable baud rate range from 100Bits/sec to 921.6KBits/sec (default Crystal frequency is 14.7456 MHz).
The UART register set is compatible with 16C550, and each channel is equipped with a 64 byte FIFO (first in, first out buffer).
Fully compatible with PCI (32MHz/32-bit), making it easy to quickly integrate into traditional systems.
The signal characteristics (RS232/RS422/RS485) of each channel can be configured through DIP switches.
Supports data transmission in bytes, words, and doublewords, allowing for read/write burst operations.
Equipped with automatic RTS/CTS or DTR/DSR flow control, as well as automatic Xon/Xoff software flow control function.
Provide interrupt source registers for all 8 ports for easy interrupt management.
Supports RS485 half duplex control with optional delay settings.