Filter
Top Products
Chapter 2. System board features
The default setting for the parallel port is Parallel 1.
The system board has one connector for the parallel port. For information on the connector pin
assignments, see “Parallel port connector” on page 34.
Keyboard and mouse ports
The keyboard and mouse subsystem is controlled by a general purpose 8-bit microcontroller; it is
compatible with 8042AH. The controller consists of 256 bytes of data memory and 2 KB of read-only
memory (ROM).
The controller has two logical devices: one controls the keyboard and the other controls the mouse. The
keyboard has two fixed I/O addresses and a fixed IRQ line and can operate without the mouse. The
mouse cannot operate without the keyboard because, although it has a fixed IRQ line, the mouse relies on
the addresses of the keyboard for operation. For the keyboard and mouse interfaces, no resource
assignments are given in the system memory addresses or DMA channels. For information on the
resource assignments, see “Input/output address map” on page 36 and Figure 38 on page 40 (for IRQ
assignments).
The system board has one connector for the keyboard port and one connector for the mouse port. For
information on the connector pin assignments, see “Mouse and keyboard port connectors” on page 33.
Network connection
Some PC 300PL Personal Computer models are equipped with an Ethernet adapter and some are
equipped with a token ring adapter that supports the Wake on LAN feature.
Features of the Ethernet adapter are:
Operates in shared 10BASE-T or 100BASE-TX environment
Transmits and receives data at 10 Mbps or 100 Mbps
Has a RJ-45 connector for LAN attachment
Operates in symmetrical multiprocessing (SMP) environments
Supports Wake on LAN
Supports Alert on LAN
Supports Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)
Features of the token-ring adapter are:
Transmits and receives data at 4 Mbps or 16 Mbps
Has a RJ-45 and D-shell connectors for LAN attachment
Supports Wake on LAN
Supports Alert on LAN
Supports Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)
Figure 5. Parallel port assignments
Port assignment Address range (hex) IRQ level
Parallel 1 03BC–03BE IRQ7
Parallel 2 0378–037F IRQ5
Parallel 3 0278–027F IRQ5
Chapter 2. System board features 11