Toshiba 2405-S201 Satellite 2400 Series Interrupts / Memory Map, Interrupt Level Assigned to

Satellite 2400 Series Interrupts / Memory Map

Interrupt Assignments

Interrupt	Level	Assigned to:
—	NMI	RAM Parity Error, I/O Channel Error
	0	Timer
	1	Keyboard
	2	PIC 2 for level 8 to 15
1	3	COM 2/4*
	4	COM 1/3*
	5	LPT 2*, or Secondary IDE*
	6	FDC
	7	LPT 1/3*
	8	RTC
	9	Modem 2nd IRQ*
	10	Reserved
2	11	Reserved
	12	PS/2 Mouse
	13	Math co-processor
	14	Primary IDE*
	15	CD-ROM (ATAPI)*

*These I/O assignments are controlled by PnP OS or system setup as shown below:

IRQ level	0 1 2 3	4	5	6 7 8	9	10	11 12 13	14	15
IDE	$	$	$	$	$	$	$	%	$
CD-ROM (ATAPI)	$	$	$	$	$	$	$	$	%
Serial Port	%	%	$	$	$	$	$	$	$
Modem 2nd IRQ			$	$	%	$			$
FIR	$	$	$	$	$	$	$	$	$
Parallel Port			$	$	$	$	$	$	$
PCI Bus	$	$	$	$	$	$	$
		%: Default setting, $: Possible setting

System Memory Map

Address range	Space (Kbytes)	Use
'00000000' to '0009FFFF'	640	Conventional memory
'000A0000' to '000BFFFF'	128	Video RAM
'000C0000' to '000CFFFF'	64	VGA BIOS-ROM
'000D0000' to '000EFFFF'	128	Not used (PCI/ISA)
'00F0000' to '000FFFFF'	64	System BIOS ROM (Shadow RAM)
'00100000' to '03FDFFFF'	64,384	System working memory
'03FE0000' to '03FEFFFF'	64	ACPI
'03FF0000' to '03FFFFFF'	64	DMI
'04000000' to '0FFFFFFF'	196,608 (MAX.)	Optional working memory
'0A)000000' to 'FFFDFFFF'		Memory expansion in expansion port
'100A0000' to '100FFFFF'	384	System Management RAM and etc
'FFFF0000' to 'FFFFFFFF'	1,024	BIOS-ROM (duplicated) and etc

Toshiba TRR Page 24 7/02, Satellite