參數(shù)資料
型號(hào)： 82803AAMRH-R
英文描述： Controller Miscellaneous - Datasheet Reference
中文描述： 控制器雜項(xiàng)-數(shù)據(jù)表參考
文件頁(yè)數(shù)： 22/52頁(yè)
文件大小： 322K
代理商： 82803AAMRH-R
82803AA MRH-R
R
Datasheet
22
3.7.1.
RIR—RAC Initialization Register
Address:
Default:
Access:
Size:
0Fh
0000h
Read/Write
16 bits
Bit
Description
15:5
Reserved.
4
RAC Initialization Complete (RC).
The MRH-R sets this bit after it has completed RAC initialization.
BIOS must check this bit to make sure the RACs have been properly initialized before initiating memory
accesses.
1 = Initialization Complete
0 = Initialization not Complete
3
Initiate RIC operation (IRO).
BIOS must check that this bit is 0 before writing to this bit again.
1 = Execution In-Progress. Execution of the RIC command specified by bits 2:0 begins.
0 = Execution Complete. After the operation is completed, the MRH-R clears this bit to 0.
2:0
RAC Initialization Command (RIC).
This field allows BIOS to initialize the MRH-R RACs. BIOS
programs this field with the appropriate command then sets bit 3 to 1. The MRH-R then executes the
command specified in this field. When the operation is complete, the MRH-R clears bit 3 to 0.
000 = Reserved
001 =
Initialize Expansion RAC.
When the MRH-R receives this command, it performs initialization
sequence on the MRH-R RAC. The initialization process includes executing the power-up
sequence to the RAC, powering up the DRCG’s for enabled ‘stick’ channels, and Current and
Temperature Calibrating of the MRH-R ‘expansion’ channel RAC.
010 =
Manual Current Calibrate the RAC.
When the MRH-R receives this command, it issues a
Manual Current Calibrate sequence to ALL the RACs. The current control values specified in the
EXCC, CACC, CBCC registers are used as the manual current control values.
011 =
Temperature Calibrate the RAC.
When the MRH-R receives this command, it issues a
Temperature Calibrate sequence to ALL the RACs.
100 =
Set Fast Clock (SETF).
When the MRH-R receives this command, it issues a Set Fast clock
sequence to the RAC.
101 =
Initialize Stick RACs.
When the MRH-R receives this command, it performs initialization
sequence on the MRH-R ‘stick’ channel RACs. The initialization process includes executing the
power-up sequence to the RAC, and RAC Current and Temperature Calibration.
111 = Reserved
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