Specifications

Chipset and I/O Map
EPC-100 Hardware Reference A-6
ISA Plug and Play
I/O Addr Functional group Usage
279 Plug and Play
A79 Data Register
CF8 Configuration Address Register
CF9 Turbo reset control register
CFC Configuration data register
Serial I/O (COM B) Port
2F8 COM B serial port Receiver/transmitter buffer
Baud rate divisor latch (LSB)
2F9 Interrupt enable register
Baud rate divisor latch (MSB)
2FA Interrupt ID register
2FB Line control register
2FC Modem control register
2FD Line status register
2FE Modem status register
Parallel I/O (LPT1) Port
378 LPT1 parallel port Printer data register
379 Printer status register
37A Printer control register
EPP Registers
37B EPP Address Port
37C Data Port 0
37D Data Port 1
37E Data Port 2
37F Data Port 3