LPC47B37X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

LPC47B37X

100 Pin Enhanced Super I/O for LPC Bus with SMBus Controller for Commercial Applications

SMSC -> Microchip 

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PARALLEL PORT

The LPC47B37x incorporates an IBM XT/AT compatible parallel port. This supports the optional PS/2

type bi-directional parallel port (SPP), the Enhanced Parallel Port (EPP) and the Extended Capabilities

Port (ECP) parallel port modes. Refer to the Configuration Registers for information on disabling, power

down, changing the base address of the parallel port, and selecting the mode of operation.

The LPC47B37x also provides a mode for support of the floppy disk controller on the parallel port.

The parallel port also incorporates SMSC's ChiProtect circuitry, which prevents possible damage to the

parallel port due to printer power-up.

The functionality of the Parallel Port is achieved through the use of eight addressable ports, with their

associated registers and control gating. The control and data port are read/write by the CPU, the status

port is read/write in the EPP mode. The address map of the Parallel Port is shown below

DATA PORT

STATUS PORT

CONTROL PORT

EPP ADDR PORT

EPP DATA PORT 0

EPP DATA PORT 1

EPP DATA PORT 2

EPP DATA PORT 3

BASE ADDRESS + 00H

BASE ADDRESS + 01H

BASE ADDRESS + 02H

BASE ADDRESS + 03H

BASE ADDRESS + 04H

BASE ADDRESS + 05H

BASE ADDRESS + 06H

BASE ADDRESS + 07H

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