M69030 Asiliant Technologies, M69030 Datasheet - Page 152
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
Manufacturer
Quantity
Price
Part Number:
M69030
Manufacturer:
CHIPS
Quantity:
20 000
Part Number:
M69030P
Manufacturer:
MIT
Quantity:
20 000
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10-4
SR02
read/write at I/O address 3C5h with index at address 3C4h set to 02h
shared by both pipelines A and B
Note: This register is referred to in the VGA standard as the Map Mask Register. However, the word “map”
is used with multiple meanings in the VGA standard and was, therefore, deemed too confusing, hence the
reason for calling it the Plane Mask Register.
7-4
3-0
`efmp
A
&
B
Reserved
Memory Plane 3 through Memory Plane 0
69030 Databook
7
Plane Mask Register
These four bits of this register control processor write access to the four memory maps:
0: Disables CPU write access to the given memory plane
1: Enables CPU write access to the given memory plane
In both the Odd/Even Mode and the Chain 4 Mode, these bits still control access to the
corresponding color plane.
6
Reserved
5
Sequencer Registers
4
Memory
Plane 3
3
Memory
Plane 2
2
Memory
Plane 1
Revision 1.3 11/24/99
1
Memory
Plane 0
0
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