Pci Configuration Space Map - IBM NetVista X40 Technical Information Manual

Technical information manual for netvista 2179 and 6643 machines.

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Table Of Contents

Table of Contents

Table 34. DMA I/O address map

Address (hex)

Description

00CE

Channel 7, Transfer Count register

00D0

Channels 4–7, Read Status/Write Command

00D2

Channels 4–7, Write Request register

00D4

Channels 4–7, Write Single Mask register bit

00D6

Channels 4–7, Mode register (write)

00D8

Channels 4–7, Clear byte pointer (write)

00DA

Channels 4–7, Master clear (write)/temp (read)

00DC

Channels 4–7, Clear Mask register (write)

00DE

Channels 4–7, Write All Mask register bits

00DF

Channels 507, 8- or 16-bit mode select