LPC47N237 Datasheet, PDF (1/138 Pages) SMSC Corporation – 3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS

LPC47N237
3.3v I/O Controller for
Port Replicators and
Docking Stations
Product Features
ƒ 3.3 Volt Operation (5V Tolerant)
ƒ 32 SMBus-Hosted General Purpose Input/Output
Pins
− SMBus Slave Controller Enables Read/Write Access
to GPIO Ports
− SMBus Runs on and GPIO Pins are Driven by
Suspend Supply (VTR)
− SMBus Interrupt Pin
− SMBus Isolation Circuitry
ƒ PC99a/PC2001 Compliant
ƒ ACPI 1.0/2.0 Compliant
ƒ Power Management Interface
ƒ LPC Interface
− Multiplexed Command, Address and Data Bus
− Serial IRQ Interface Compatible with Serialized IRQ
Support for PCI Systems
− nIO_PME pin for UART Ring Indicate
− PCI Clock Run Support
ƒ 4 LPC-Hosted General Purpose Input/Output
Pins
Datasheet
ƒ Serial Port
− Full Function Serial Port
− High Speed 16C550A Compatible UART with
16-Byte Send/Receive FIFOs
− Programmable Baud Rate Generator supports 230k
and 460k Baud
− Modem Control Circuitry
− 480 Address and 15 IRQ Options
− Ring Indicator Wakeup Event
ƒ Multi-Mode™ Parallel Port with ChiProtect™
− Standard Mode IBM PC/XT®, PC/AT®, and PS/2™
Compatible Bidirectional Parallel Port
− Enhanced Parallel Port (EPP) Compatible - EPP 1.7
and EPP 1.9 (IEEE 1284 Compliant)
− IEEE 1284 Compliant Enhanced Capabilities Port
(ECP)
− ChiProtect Circuitry for Protection
− 480 Address, Up to 15 IRQ and Three DMA Options
ƒ XNOR-Chain
ƒ 100 pin TQFP package; green, lead-free package
also available
SMSC DS – LPC47N237
DATASHEET
Revision 0.3 (10-26-04)