AMD-761 Datasheet, PDF (69/264 Pages) Advanced Micro Devices – AMD-761-TM System Controller Software/BIOS Design Guide

24081D—February 2002
Preliminary Information
AMD-761™ System Controller Software/BIOS Design Guide
Bit Definitions
Bit Name
31 Clk_Dis5
30 Clk_Dis4
29 Clk_Dis3
28 Clk_Dis2
27 Clk_Dis1
26 Clk_Dis0
DRAM Mode/Status (Dev0:F0:0x58)
Function
Clock Disable
This bit controls the DDR CLKOUT5/CLKOUT5# differential clock pair:
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Clock Disable
This bit controls the DDR CLKOUT4/CLKOUT4# differential clock pair.
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Clock Disable
This bit controls the DDR CLKOUT3/CLKOUT3# differential clock pair.
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Clock Disable
This bit controls the DDR CLKOUT2/CLKOUT2# differential clock pair.
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Clock Disable
This bit controls the DDR CLKOUT1/CLKOUT1# differential clock pair.
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Clock Disable
This bit controls the DDR CLKOUT0/CLKOUT0# differential clock pair.
0 = Clock pair enabled
1 = Clock pair disabled (three-stated)
Note: This bit is meant to disable the clock pair when it is not connected to anything.
This bit should not be used for memory sizing or power management uses.
Chapter 2
AMD-761™ System Controller Programmer’s Interface
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