B69000 Asiliant Technologies, B69000 Datasheet - Page 90

• Manufacturer Part Number: B69000
• Manufacturer: Asiliant Technologies

Specifications of B69000

• Lead Free Status / Rohs Status: Supplier Unconfirmed

8-4
FCR
write at I/O Address 3BAh/3DAh
read at I/O Address 3CAh
7-4
3
Note: This feature is largely unused by current software -- this bit is provided solely for VGA compatibility.
2-0
&+,36
7
Reserved
These bits return the value of 0 when read.
VSYNC Control
0: VSYNC output pin simply provides the vertical sync signal.
1: VSYNC output pin provides a signal that is the logical OR of the vertical sync signal and the value
of bit 0 of Input Status Register 1 (ST01).
Reserved
These bits return the value of 0 when read.
69000 Databook
Feature Control Register
6
Reserved
5
General Control and Status Registers
Subject to Change Without Notice
4
VSYNC
Control
3
2
Reserved
Revision 1.3 8/31/98
1
0