M69000 Asiliant Technologies, M69000 Datasheet - Page 82
M69000
Manufacturer Part Number
M69000
Description
Manufacturer
Asiliant Technologies
Datasheet
1.M69000.pdf
(360 pages)
Specifications of M69000
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read/write at PCI configuration offset 10h
byte, word, or doubleword accessible
accessible only via PCI configuration cycles
31-24
23-4
3
2-1
0
&+,36
31
15
Memory Space Base Address
These 8 bits select the base address for this 16MB memory space used by the 69000 for the
memory mapped registers and linear accesses to the frame buffer.
Memory Space Size
These 20 bits always return 0 to indicate that the size of this memory space is 16MB.
Prefetchable
This bit always returns a value of 0 when read, indicating that the data in this 16MB memory space
should not be prefetched by the CPU.
Memory Type
These 2 bits always return values of 0 when read, indicating that this 16MB memory space may be
placed anywhere in the system’s 32-bit address space by the system’s PCI configuration software.
Memory/IO Space Indicator
This bit always returns a value of 0 when read, indicating that this is a memory space, not an I/O
space.
30
14
69000 Databook
Memory Space Base Address
29
13
Memory Base Address Register
(0000:0000)
28
12
27
11
Memory Space Size
(0000:0000:0000)
26
10
Subject to Change Without Notice
PCI Configuration Registers
25
9
24
8
23
7
22
6
21
5
Memory Space Size
(0000:0000)
20
4
Pref.
(0)
19
3
Revision 1.3 8/31/98
18
2
Memory
Type
(00)
17
1
M or
I/O
(0)
16
0
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