Isa Local Resource Bus; W83C553 Pib Registers; Uart; Table 1-15. 16550 Access Registers - Motorola MVME2400 Series Programmer's Reference Manual

ISA Local Resource Bus

W83C553 PIB Registers

The PIB contains ISA Bridge I/O registers for various functions. These
registers are actually accessible from the PCI bus. Refer to the W83C553
Data Sheet for details.

UART

A 16550-compatible UART provides the MVME2400 series with an
asynchronous serial port. Refer to the TL16C550 Data Sheet for additional
details and programming information.
The following table shows the mapping of the 16550 registers within the
MVME2400 series's ISA I/O space beginning at address 0x2f8:

Table 1-15. 16550 Access Registers

ISA I/O Address Function
0000 02f8 Receiver Buffer (Read);
Transmitter Holding (Write)
0000 -03f9 Interrupt Enable
0000 03fa Interrupt Identification (Read);
FIFO Control (Write)
0000 03fb Line Control
0000 03fc MODEM control
0000 03fd Line Status
0000 03fe MODEM Status
0000 03ff Scratch
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ISA Local Resource Bus
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