IBM NetVista A40i 2251, (Dutch) Brugervejledning

Page: 90 / 98

Tabel 3. DMA I/O-adresser (fortsat)
Adresse
(hex-værdi) Beskrivelse Bit Byte-
pointer
0083 Channel 1, page table address register 00 – 07
0087 Channel 0, page table address register 00 – 07
0089 Channel 6, page table address register 00 – 07
008A Channel 7, page table address register 00 – 07
008B Channel 5, page table address register 00 – 07
008F Channel 4, page table address/refresh register 00 – 07
00C0 Channel 4, memory address register 00 – 15 Ja
00C2 Channel 4, transfer count register 00 – 15 Ja
00C4 Channel 5, memory address register 00 – 15 Ja
00C6 Channel 5, transfer count register 00 – 15 Ja
00C8 Channel 6, memory address register 00 – 15 Ja
00CA Channel 6, transfer count register 00 – 15 Ja
00CC Channel 7, memory address register 00 – 15 Ja
00CE Channel 7, transfer count register 00 – 15 Ja
00D0 Channels 4–7, read status/write command register 00 – 07
00D2 Channels 4–7, write request register 00 – 02
00D4 Channels 4–7, write single mask register bit 00 – 02
00D6 Channels 4–7, mode register (write) 00 – 07
00D8 Channels 4–7, clear byte pointer (write)
00DA Channels 4–7, master clear (write)/temp (read) 00 – 07
00DC Channels 4–7, clear mask register (write) 00 – 03
00DE Channels 4–7, write all mask register bits 00 – 03
00DF Channels 5–7, 8- or 16-bit mode select 00 – 07
80
Brugervejledning