Serial Interface; Parallel Port Addresses; Serial Port I/O Addresses - NEC POWERMATE 2000 Service And Reference Manual

Starting I/O Address
378
278
228
378
278
228
Parallel interface signals are output through the system board's 25-pin,
D-subconnector. The connector is located at the back of the system unit.

Serial Interface

The system has one 16C550 UART compatible serial port (COM1) integrated
on the I/O controller. The serial port supports the standard RS-232C interface.
The buffered high-speed serial port supports transfer rates up to 115.2 KB. The
port allows the installation of high-speed serial devices for faster data transfer
rates.
The I/O addresses for the channel are given in the following table (see Section
2, "System Configuration," for interrupt levels). Soft-selectable base addresses
are 3F8h, 2F8h, 3E8h, and 2E8h.
Starting I/O Address
3F8
2F8
3E8
2E8
See Section 2, "System Configuration," for information on resetting the port
through the BIOS Setup utility. See Section 9, "Specifications," for the serial
interface specifications.
Serial interface signals are output through the system board's 9-pin,
D-subconnector. The connector is located at the back of the system unit.

Parallel Port Addresses

Port
LPT1
LPT2
LPT3
LPT1
LPT2
LPT3

Serial Port I/O Addresses

Port
COM1
COM2
COM3
COM4
System Board 4-13