Product Description
The PI7C9X7952 is a PCI Express® Dual UART (Universal Asynchronous Receiver-Transmitters) I/O Bridge. It is specifically designed to meet the latest system requirements of high performance, lead (Pb) -free and reduced package sizes. The bridge can be used in a wide range of applications such as Remote Access Servers, Automation, Process Control, Instrumentation, POS, ATM and Multi-port RS232/RS422/RS485 Cards.
FEATUREs
â—¾ Support 2 high performance 16C950 UART in single
chip
â—¾ Fully software compatible with 16C550-type device
drivers
â—¾ 128-byte transmit and receive FIFO
â—¾ Flexible clock pre-scaler from 4 to 46
â—¾ Automated in-band flow control using programmable
Xon/ Xoff in both directions
â—¾ Automated out-of-band flow control using CTS#/ RTS#
and/or DSR#/ DTR#
â—¾ Arbitrary trigger levels for receiver and transmitter
â—¾ FIFO interrupts and automatic in-band and out-band flow
control
â—¾ Data framing sizes: 5, 6, 7, 8 and 9
â—¾ Configurable using non-volatile configuration memory
(EEPROM)
â—¾ Global Interrupt Status and readable FIFO levels to
facilitate implementation of efficient device drivers.
â—¾ Operation via IO or memory mapping
â—¾ Detection of bad data in the receive FIFO
â—¾ Baud rate up to 15 Mbps in asynchronous mode.
â—¾ Supports up to 256-byte maximum payload size
â—¾ 1.8 and 3.3V operation
â—¾ Power dissipation: 0.7 W typical in normal mode
â—¾ Industrial Temperature Range -40o to 85o
â—¾ Package: 14x14mm, 128-pin LQFP, Pb free and 100%
Green.
APPLICATIONs
â—¾ Remote Access Servers
â—¾ Network / Storage Management
â—¾ Factory Automation and Process Control
â—¾ Instrumentation
â—¾ Multi-port RS-232/ RS-422/ RS-485 Cards
â—¾ Point-of-Sale Systems (PoS)
â—¾ Industrial Control (IPC)
â—¾ Gaming Machines
â—¾ Building Automation
â—¾ Embedded Systems