IBM PC 300PL manual Keyboard and mouse ports, Network connection, Rpl

			Chapter	2. System board features
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

The default setting for the parallel port is Parallel 1.

The system board has one connector for the parallel port. For information on the conne 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 microcontro compatible with 8042AH. The controller consists of 256 bytes of data memory and 2 KB memory (ROM).

The	controller	has	two	logical	devices: one controls the keyboard and the other contro
keyboard has		two	fixed I/O		addresses and a fixed IRQ	line	and	can	operate wit
mouse	cannot	operate		without	the keyboard because, although	it	has	a	fixed IRQ li

the addresses of the keyboard for operation. For the keyboard and mouse interface assignments are given in the system memory addresses or DMA channels. For information on resource assignments, see “Input/output address map” on page 36 and Figure 38 on page assignments).

The system board has one connector for the keyboard port and one connector for the information on the connector pin assignments, see “Mouse and keyboard port connectors” o

Network connection

Some PC 300PL Personal Computer models						are equipped with an Ethernet adapter and some a
equipped with a token ring adapter that							supports the Wake on LAN feature.
Features of the Ethernet					adapter	are:
Ÿ	Operates	in	shared 10BASE-T or 100BASE-TX environment
Ÿ	Transmits	and	receives data at 10 Mbps or 100 Mbps
Ÿ	Has a RJ-45		connector		for LAN	attachment
Ÿ	Operates	in	symmetrical		multiprocessing		(SMP) environments
Ÿ	Supports	Wake	on	LAN
Ÿ	Supports	Alert	on	LAN

ŸSupports Remote Program Load (RPL) and Dynamic Host Configuration Protocol (DHCP)

Features of the token-ring adapter are:

Ÿ	Transmits	and	receives		data	at	4	Mbps	or	16	Mbps
Ÿ	Has a	RJ-45	and	D-shell connectors				for	LAN	attachment
Ÿ	Supports	Wake	on	LAN
Ÿ	Supports	Alert	on	LAN
Ÿ	Supports	Remote Program			Load	(RPL)	and Dynamic				Host Configuration Protocol (DHCP)

Chapter 2. System board features11