RG82845M Intel, RG82845M Datasheet - Page 44

• Manufacturer Part Number: RG82845M
• Description: Chipset Memory Controller Hub Mobile
• Manufacturer: Intel

Intel
3.6.2.
44
®
82845MP/82845MZ Chipset-Mobile (MCH-M)
Signal Groups
DQCMDSTR – Strength Control Register for DQ and CMD
Address Offset:
Default Value:
Access:
Size:
This register controls the drive strength of the I/O buffers for the DQ/DQS and CMD signal groups.
Bit
6:4
2:0
7
3
Reserved
Reserved
CMD Strength Control (RAS#, CAS#, WE#, MA[12:0], BS[1:0])
000 = 0.75 X (default)
001 = 1.00 X
010 = 1.25 X
011 = 1.50 X
100 = 2.00 X
101 = 2.50 X
110 = 3.00 X
111 = 4.00 X
DQ/DQS Strength Control: Sets drive strength as shown below:
000 = 0.75 X (default)
001 = 1.00 X
010 = 1.25 X
011 = 1.50 X
100 = 2.00 X
101 = 2.50 X
110 = 3.00 X
111 = 4.00 X
30h
00h
Read Only, Read/Write
8 bits
Datasheet
Descriptions
250687-002
R