PI7C8954 Datasheet, PDF (1/1 Pages) Pericom Semiconductor Corporation – PCI® Quad UART I/O Bridge

Product:
PCI^® Quad UART I/O Bridge
Part Numbers: PI7C8954
Product Description
The PI7C8954 is a PCI^® Quad UART (Universal
Asynchronous Receiver-Transmitters) I/O Bridge. It is
specifically designed to meet various system requirements of
high performance and lead (Pb) -free. 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. The
PI7C8954 provides standard PCI^® connection, and it is fully
compliant with 32-bit PCI Bus 2.3 specifications. The bridge
supports four high performance UARTs, each of which
supports Baud rate up to 15 Mbps in asynchronous mode.
The UARTs support in-band and out-band auto flow control,
arbitrary trigger level, I/O mapping and memory mapping,
IrDA (Infrared Data Association) encoder/decoder, 8 general
purpose I/O and 16-bit timer counter. The PI7C8954 is fully
software compatible with 16C550 type device drivers and can
be configured to fit the requirements of RS232, RS422 and
RS485 applications. The EEPROM interface is provided for
system implementation convenience. Some registers can be
pre-programmed via hardware pin settings to facilitate
system initialization. For programming flexibility, all of the
default configuration registers can be overwritten by
EEPROM data, such as sub-vendor and sub-system ID.
Industry Specifications Compliance
PCI Specification, Revision 2.3 compliance
Features
Four high performance 950-class UARTs
Universal PCI Bus Buffers – Auto sense 3.3V or 5V
operation
Fully 16C550 software compatible UARTs
128-byte FIFO for each transmitter and receiver
Baud rate up to 15 Mbps in asynchronous mode
Flexible clock prescaler from 4 to 46
Data Transfer in Byte, Word and Double-word
Data Read/Write Burst Operation
Automated in-band flow control using programmable
Xon/Xoff in both directions
Automated out-of-band flow control using CTS#/RTS#
and/or DSR#/DTR#
Arbitrary trigger levels for receiver and transmitter FIFO
interrupts and automatic in-band and out-band flow
control
Global Interrupt Status and readable FIFO levels to
facilitate implementation of efficient device drivers
Detection of bad data in the receiver FIFO
Data framing size including 5, 6, 7, 8 and 9 bits
Infrared (IrDA 1.0/1.1) Data Encoder/Decoder
Auto RS-485 Half-duplex Output with Control Polarity
Selector
Eight General Purpose Inputs/Outputs
A General Purpose 16-bit Timer/Counter
Hardware reconfiguration through EEPROM
Operations via I/O or memory mapping
Sleep Mode with Automatic Wake-up
Dual power operation (3.3V or 5.0V for PCI I/O and
1.8V-5.0V for UART I/O)
Power dissipation: 150 mW typical in normal mode
Industrial Temperature Range -40^o to 85^o
Package: 20x20mm, 144-pin LQFP, w/0.5mm pin pitch -
Pb free and 100% Green.
Software support
Microsoft^TM Windows 2003/XP/Vista/Windows
Embedded/Windows 8/Windows 8.1/Windows 10 32/64
bit
Microsoft^TM Windows CE 6.0
Linux 2.6, RedHat 6.5 and above
Applications
Remote Access Servers
Network / Storage Management
Factory Automation and Process Control
Instrumentation
Multi-port RS-232/ RS-422/ RS-485 Cards
Point-of-Sale Systems (PoS)
Industrial Control (IPC)
Gaming Machines
Building Automation
Embedded Systems
Figure 1. PI7C8958 BLOCK DIAGRAM
CLK
RST#
AD[31:0]
CBE[3:0]#
FRAME#
IRDY#
TRDY#
DEVSEL#
STOP#
INT#
IDSEL#
PERR#
SERR#
PAR
LQFP-144 PIN
PCI Local
Bus
Interface
Device
Global Ctl.
Registers
Configuration
Space
Registers
16-bit
Timer/Counter
UART-0
UART
Regs
BRG
128 Byte TX FIFO
TX & RX
IR 1.0/
1.1
ENDEC
128 Byte RX FIFO
UART-1
UART-2
UART-3
TX0,RX0,DTR0#
DSR0#, RTS0#
CTS0#,CD0#,RI0#
TX3,RX3,DTR3#
DSR3#, RTS3#
CTS3#,CD3#,RI3#
EECK
EEDI
EEDO
EECS
EEPROM
Interface
General Purpose I/O
GPIO0-GPIO7
Crystal OSC/Buffer
XTAL1
XTAL2
TMRCK
PI7C8954 Block Diagram
Order Information
PART NUMBER
PI7C8954AFHE
PI7C8954AEVB
PACKAGE
144 LQFP
Board
PB-FREE &
GREEN
YES
TEMPERATURE
-40^oC TO 85^oC
Evaluation Board for PI7C8954A
Page 1 of 1
16-0006
Pericom Semiconductor Corp.
www.pericom.com
PCI^® , PCIe^® and PCI Express^® are registered trademarks of the PCI SIG^® (www.pcisig.org)
4/27/2016
Rev 1.1