M69030 Asiliant Technologies, M69030 Datasheet - Page 203

• Manufacturer Part Number: M69030
• Manufacturer: Asiliant Technologies

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

XR80
read/write at I/O address 3D7h with index at I/O address 3D6h set to 80h
shadowed for pipelines A and B
7
6
5
4
`efmp
A
B
DAC Select
DAC Selec
6-Bit/8-Bit
6-Bit/8-Bit

6-Bit/8-Bit DAC Select
Reserved
Pixel Averaging Enable
Alternate Hardware Cursor Enable
69030 Databook
(0)
(0)
7
Pixel Pipeline Configuration 0 Register
0: All three D-to-A converters are set for 6-bit operation. This is the default after reset.
1: All three D-to-A converters are set for 8-bit operation.
This bit always returns the value of 0 when read.
Pixel averaging causes the red, green and blue color component values of a replicated
pixel created by the horizontal stretching process to be averaged with those of the next
pixel.
0: Disables pixel averaging. This is the default after reset.
1: Enables pixel averaging.
Note: The pixel averaging feature applies only to flat panel displays, not CRT’s, and it
applies only when horizontal stretching is active (see the description of the Horizontal
Stretching Register, FR41, for more details).
0: Disables hardware cursor.
1: Enables hardware cursor.
Reserved
Reserved
(0)
(0)
6
Averaging
Averaging
Pixel
Pixel
(0)
(0)
5
Extension Registers
Cursor En
Cursor En
Hardware
Hardware
Alt
(0)
Alt
(0)
4
Extended
Extended
Status
Status
Read
Read
(0)
(0)
3
Flat Panel
Flat Panel
Overscan
Overscan
(0)
(0)
2
Overscan
Overscan
Revision 1.3 11/24/99
CRT
CRT
(0)
(0)
1
Palette Addr
Palette Addr
Select
Select
(0)
(0)
0
14-23