M69030 Asiliant Technologies, M69030 Datasheet - Page 126

• 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

9-24
CR14
read/write at I/O address 3B5h/3D5h with index at address 3B4h/3D4h set to 14h
shadowed for pipelines A and B
7
6
`efmp
A
B
Reserved
Reserved

Reserved
Doubleword Mode
69030 Databook
7
Underline Location Register
0: Frame buffer addresses are interpreted by the frame buffer address decoder as being
either byte addresses or word addresses, depending upon the setting of bit 6 of the CRT
Mode Control Register (CR17).
1: Frame buffer addresses are interpreted by the frame buffer address decoder as being
doubleword addresses regardless of the setting of bit 6 of the CRT Mode Control Register
(CR17).
Note: This bit is used in conjunction with bits 6 and 5 of the CRT Mode Control Register
(CR17) to select how frame buffer addresses from the CPU are interpreted by the frame
buffer address decoder as shown below:
Dword
Dword
Mode
Mode
6
Count By 4
Count By 4
CR14
Bit 6
0
0
1
1
5
CRT Controller Registers
CR17
Bit 6
0
1
0
1
4
Addressing Mode
Doubleword Mode
Doubleword Mode
Word Mode
Byte Mode
3
Underline Location
Underline Location
2
Revision 1.3 11/24/99
1
0