Adlink CoreModule 745 Bedienungsanleitung PDF herunterladen (Seite 28)

Chapter 3 Hardware

22 Reference Manual CoreModule 745

I/O Address Map

Table 3-3 shows the I/O address map. These are DOS-level addresses. The OS typically hides these physical

addresses by way of memory management.

Table 3-3. I/O Address Map

Address (hex) Subsystem

0000-00F Primary DMA Controller

0020-0021 Master Interrupt Controller

002E-002F SIO Configuration Ports

0040-0043 Programmable Interrupt Timer (Clock/Timer)

0060-006F Keyboard Controller

0070-007F CMOS RAM, NMI Mask Reg, RT Clock

0080-009F DMA Page Registers

00A0-00BF Slave Interrupt Controller

00C0-00DF Slave DMA Controller #2

00F0-00FF Math Coprocessor

01F0-01F8 IDE Hard Disk Controller

02F8-02FF Serial Port 2 (COM2)

03B0-03BB Video (monochrome)

03C0-03DF VGA

03E8-03EF Serial Port 3 (COM3)

03F8-03FF Serial Port 1 (COM1)

0400-041F SMBus Configuration Ports

0500-053F ICH8 GPIO Configuration Ports

0800-087F ICH8 Power Management Ports

0A79h ISA PnP Ports

0B00-0B7F SIO Runtime Registers

0CF8-0CFF PCI bus Configuration Address and Data

NOTE 0A79h is the ISA PnP port used by the BIOS and an OS that supports this feature to

recognize ISA PnP (Plug and Play) cards.

The Intel I/O hub ICH-8 (ICH-6 or later) does not support ISA DMA.

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