參數(shù)資料
型號： NCT7491RQR2G
廠商： ON Semiconductor
文件頁數(shù)： 66/80頁
文件大?。?/td> 844K
描述： IC REMOTE THERMAL MONITOR 24QSOP
標準包裝： 2,500
系列： *
NCT7491
http://onsemi.com
66
Table 103. REGISTER 0x87  Configuration 9 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
<0>
PWM1OFF
R/W
1= Disables PWM1
<1>
PWM2OFF
R/W
1= Disables PWM2
<2>
PWM3OFF
R/W
1 = Disables PWM3
<3>
Reserved
R
<4>
D0V
R/W
1 = DIMM0 is populated, must be set to enable DIMM0 temperature to be written to CPU
<5>
D1V
R/W
1 = DIMM1 is populated, must be set to enable DIMM1 temperature to be written to CPU
<6>
D2V
R/W
1 = DIMM2 is populated, must be set to enable DIMM2 temperature to be written to CPU
<7>
D3V
R/W
1 = DIMM3 is populated, must be set to enable DIMM3 temperature to be written to CPU
Table 104. REGISTER 0x88  PECI Configuration Register 2 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
<2:0>
RES
R
RESERVED
<3>
DOM3
R/W
CPU Domain Count information. Set to 0 indicates that CPU 4 associated with the PECI3 reading has
a single domain (Default). Set to 1 indicates that the system CPU4 contains two domains.
<4>
DOM2
R/W
CPU Domain Count information. Set to 0 indicates that CPU 3 associated with the PECI2 reading has
a single domain (Default). Set to 1 indicates that the system CPU3 contains two domains.
<5>
DOM1
R/W
CPU Domain Count information. Set to 0 indicates that CPU 2 associated with the PECI1 reading has
a single domain (Default). Set to 1 indicates that the system CPU2 contains two domains.
<7:6>
#CPU
R/W
CPU Count. These bits indicate the number of CPUs in the system. That will provide PECI thermal
information to the NCT7491.
00 = 1 CPU
01 = 2 CPUs
10 = 3 CPUs
11 = 4 CPUs
Table 105. REGISTER 0x89  Interrupt Status 7 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
<0>
OVT0
R
1 = PECI0 Tcontrol exceeded
<1>
OVT1
R
1 = PECI1 Tcontrol exceeded
<2>
OVT2
R
1 = PECI2 Tcontrol exceeded
<3>
OVT3
R
1 = PECI3 Tcontrol exceeded
<4>
OVT_R1
R
1 = Remote1 THERM exceeded
<5>
OVT_LOC
R
1 = Local THERM exceeded
<6>
OVT_R2
R
1 = Remote2 THERM exceeded
<7>
OOL11
R
1 indicates an out of limit condition in register 0xBB
Table 106. REGISTER 0x8A  PWM1 Source Control 1 (PowerOn Default = 0x08)
Bit
Name
R/W
Description
<0>
LOC
R/W
Logic 1 enables Local temperature to control PWM1 in automatic fan control loop
<1>
REM1
R/W
Logic 1 enables Remote1 temperature to control PWM1 in automatic fan control loop
<2>
REM2
R/W
Logic 1 enables Remote2 temperature to control PWM1 in automatic fan control loop
<3>
PEC0
R/W
Logic 1 enables PECI0 temperature to control PWM1 in automatic fan control loop
<4>
PEC1
R/W
Logic 1 enables PECI1 temperature to control PWM1 in automatic fan control loop
<5>
PEC2
R/W
Logic 1 enables PECI2 temperature to control PWM1 in automatic fan control loop
<6>
PEC3
R/W
Logic 1 enables PECI3 temperature to control PWM1 in automatic fan control loop
<7>
Reserved
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