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参数资料
型号： NCT7491RQR2G
厂商： ON Semiconductor
文件页数： 77/80页
文件大小： 844K
描述： IC REMOTE THERMAL MONITOR 24QSOP
标准包装： 2,500
系列： *
NCT7491
http://onsemi.com
77
Table 143. GENERIC PECI INTERFACE BLOCK
Register Address
Default
Description
R/W
0xE6
R/W
RDDAT5; The 6
th
 byte returned
0x00
0xE7
R/W
RDDAT6; The 7
th
 byte returned
0x00
0xE8
R/W
RDDAT6; The 8
th
 byte returned
0x00
0xE9
R/W
RDDAT6; The 9
th
 byte returned
0x00
Table 144. REGISTER 0xEA  PECI Configuration 5 (PowerOn Default = 0x00)
Bit
Name
R/W
Description
<0>
Reserved
<1>
AW
R/W
Logic 1 indicates that the command is an Assured Write command. The AW byte is automat-
ically calculated and appended by the NCT7491. Even though the user does not program the
AW value the Write Length register for an Assured Write command should include the AW
byte (for example, if 5 bytes are to be written the Write length register should be set to 6 as
the AW byte will be added to the end of the write sequence)
<2>
PEX
R/W
Logic 1 will cause the programmed PECI command sequence to be executed. This bit will
automatically clear when the command has completed.
<7:3>
Reserved
Table 145. REGISTER 0xEB  Push Hysteresis (PowerOn Default = 0x04)
Bit
Name
R/W
Description
<3:0>
Push Hyst
R/W
Sets the hysteresis value associated with the Push temperature registers
<7:4>
Reserved
Table 146. REGISTER 0xFF  Page Select
Bit
Name
R/W
Description
<0>
RGMP
R/W
1 = Selects register map page 1
<7:1>
Reserved
R
Table 147. FAN1 LOOK UP TABLE
Register Address
R/W
Description
Default
0x100
R/W
Sets the temperature for the 1st LUT point for Fan1
0x00
0x101
R/W
Sets the PWM output for the 1st LUT point for Fan1
0xFF
0x102
R/W
Sets the temperature for the 2nd LUT point for Fan1
0x00
0x103
R/W
Sets the PWM output for the 2nd LUT point for Fan1
0xFF
0x104
R/W
Sets the temperature for the 3rd LUT point for Fan1
0x00
0x105
R/W
Sets the PWM output for the 3rd LUT point for Fan1
0xFF
0x106
R/W
Sets the temperature for the 4th LUT point for Fan1
0x00
0x107
R/W
Sets the PWM output for the 4th LUT point for Fan1
0xFF
0x108
R/W
Sets the temperature for the 5th LUT point for Fan1
0x00
0x109
R/W
Sets the PWM output for the 5th LUT point for Fan1
0xFF
0x10A
R/W
Sets the temperature for the 6th LUT point for Fan1
0x00
0x10B
R/W
Sets the PWM output for the 6th LUT point for Fan1
0xFF
0x10C
R/W
Sets the temperature for the 7th LUT point for Fan1
0x00
0x10D
R/W
Sets the PWM output for the 7th LUT point for Fan1
0xFF
0x10E
R/W
Sets the temperature for the 8th LUT point for Fan1
0x00
0x10F
R/W
Sets the PWM output for the 8th LUT point for Fan1
0xFF
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