Specifications

NSTS 21000-IDD-760XD
34
The following table lists the memory addresses that should be excluded for DOS applications
when using an upper memory manager (such as EMM386). In addition to the address shows,
memory used by a PCMCIA adapter card should also be excluded. This restriction does not
apply to Windows 95 users.
Memory Addresses:
A0000-BFFFF Video
C0000-C7FFF Video
6.5 Configuration #1
6.5.1 Configuration #1 - Standalone with Dual Port RS-422 PC-Card (PCMCIA Card)
Com Port
Description
COM
Number
IRQ
Number
I/O Address
Locations
DMA
Channel
Controller
Internal
RS-232D
COM1 IRQ4 03F8-03FF N/A 16550 UART
Equivalent
PC-Card #1
RS-422 #1
COM2 IRQ3 02F8-02FF N/A 16550 UART
Equivalent
PC-Card #1
RS-422 #2
COM4 IRQ3 02E8-02EF N/A 16550 UART
Equivalent
PC-Card #2
3Com
Ethernet
N/A IRQ9 0300-030F N/A PC-Card
Available N/A IRQ10 N/A N/A N/A
6.5.2 Configuration #1 - Standalone with RS-422 Usage Table
Interrupt
Number
Device I/O Address DMA
Channel
IRQ0 Timer 0040-0043 N/A
IRQ1 Keyboard 0060, 0064 N/A
IRQ2 Cascade Int N/A N/A
IRQ3 RS-422 Ports 1 and 2 02F8-02FF
02E8-02EF
N/A
IRQ4 RS-232 on ThinkPad 03F8-03FF N/A
IRQ5 Mwave Audio 4E30-4E3F 7
IRQ6 Floppy Drive Controller 03F0-03F7 2
IRQ7 Parallel Port 0140-015F N/A
IRQ8 Real Time Clock 0070-0071 N/A
IRQ9 Ethernet PC-Card 0300-030F N/A
IRQ10 Unused N/A N/A
IRQ11 PCI Bus N/A N/A
IRQ12 TrackPoint III Pointing
Device
0060, 0064 N/A
IRQ13 Math Coprocessor N/A N/A
IRQ14 Primary IDE 01F0-01F7 N/A
IRQ15 Secondary IDE 0170-0177 N/A