M69030 Asiliant Technologies, M69030 Datasheet - Page 191
M69030
Manufacturer Part Number
M69030
Description
Manufacturer
Asiliant Technologies
Datasheet
1.M69030.pdf
(387 pages)
Specifications of M69030
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Operating Temperature (max)
70C
Rad Hardened
No
Lead Free Status / Rohs Status
Supplier Unconfirmed
Available stocks
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Part Number
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Quantity
Price
Part Number:
M69030
Manufacturer:
CHIPS
Quantity:
20 000
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M69030P
Manufacturer:
MIT
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20 000
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XR0B
read/write at I/O address 3D7h with index at I/O address 3D6h set to 0Bh
shared by both pipelines A and B
7-4
3
2
1
0
`efmp
A
&
B
Reserved
Font Expansion PCI Burst Write Buffer Depth
PCI Burst Write Buffer Depth
Reserved
PCI Burst Write Support Enable
69030 Databook
7
PCI Burst Write Support Register
These bits always return the value of 0 when read.
0: The buffer used to receive PCI burst writes is always 4 or 8 doublewords deep as
selected by bit 2 of this register, regardless of whether or not font expansion is being used.
This is the default after a reset.
1: The buffer used to receive PCI burst writes is limited to being 1 doubleword deep when
the font expansion feature is being used.
0: The buffer used to receive PCI burst writes is set to be 8 doublewords deep.
1: The buffer used to receive PCI burst writes is set to be 4 doublewords deep.
Note: The use of this bit to choose the depth of the PCI burst write buffer can be overridden
by bit 3 of this register.
This bit always returns the value of 0 when read.
0: Disables support for receiving PCI burst write cycles.
1: Enables support for receiving PCI burst write cycles.
6
Reserved
(0000)
5
Extension Registers
4
Burst Write
Font Exp
Depth
(0)
3
Write Depth
PCI Burst
(0)
2
Reserved
Revision 1.3 11/24/99
(0)
1
Burst Write
Enable
(0)
0
14-11
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