ADM1024ARU(2000) Просмотр технического описания (PDF) - Analog Devices
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ADM1024ARU Datasheet PDF : 28 Pages
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ADM1024
Table XVII. Register 4AH, Configuration Register 2 (Power-On Default [7:0] = 0x00h)
Bit Name
0
Thermal INT
Mask
1 Ambient Temp
Fan Control
Register Write
Once Bit
2 Remote Temp
Fan Control
Register Write
Once Bit
3
THERM
Interrupt Mode
4, 5 Reserved
6 IRQ3 EN
7 IRQ4 EN
R/W
Read/Write
Read/Write
Once
Read/Write
Once
Read/Write
Read Only
Read/Write
Read/Write
Description
Setting this bit masks the thermal interrupts for the INT output ONLY. The
THERM output will still be generated, regardless of the setting of this bit.
Writing a one to this bit will lock in the values set into the ambient tempera-
ture automatic fan control register 13h. This register will not be able to be
written again until a reset is performed (either POR, Hard or Soft Reset).
Writing a one to this bit will lock in the values set into the remote tempera-
ture automatic fan control register 14h. This register will not be able to
be written again until a reset is performed (either POR, Hard or Soft Reset).
If this bit is 0 the THERM output operates in default mode.
If this bit is 1, the THERM output operates in ACPI mode.
Reserved.
Setting this bit to 1 enables Pin 21 as an active high interrupt input, provided
Pins 20 to 24 have been configured as interrupts by setting Bit 7 of the
Channel Mode Register. Power-on default = 0.
Setting this bit to 1 enables Pin 20 as an active high interrupt input, provided
Pins 20 to 24 have been configured as interrupts by setting Bit 7 of the
Channel Mode Register. Power-on default = 0.
Table XVIII. Register 4Ch, Interrupt Status Register 1 Mirror (Power-On Default <7:0> = 00h)
Bit Name
R/W
Description
0 2.5 V/Ext. Temp2 Error Read Only
1
VCCP1 Error
2
VCC Error
3 5 V Error
Read Only
Read Only
Read Only
4 Internal Temp Error
Read Only
5 External Temp1 Error Read Only
6 FAN1/AIN1 Error
7 FAN2/AIN2 Error
Read Only
Read Only
A one indicates that a High or Low limit has been exceeded.
A one indicates that a High or Low limit has been exceeded.
A one indicates that a High or Low limit has been exceeded.
A one indicates that a High or Low limit has been exceeded.
A one indicates that a temperature interrupt has been set, or that a High or
Low limit has been exceeded.
A one indicates that a temperature interrupt has been set, or that a High or
Low limit has been exceeded.
A one indicates that a High or Low limit has been exceeded.
A one indicates that a High or Low limit has been exceeded.
Table XIX. Register 4DH, Interrupt Status Register 2 Mirror (Power-On Default <7:0> = 00h)
Bit Name
R/W
Description
0 12 V Error
1
VCCP2 Error
2 Reserved
3 Reserved
4 Chassis Error
5
THERM Interrupt
6 D1 Fault
7 D2 Fault
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
Read Only
A one indicates a High or Low limit has been exceeded.
A one indicates a High or Low limit has been exceeded.
Undefined.
Undefined.
A one indicates Chassis Intrusion has gone high.
Indicates that THERM pin has been pulled low by an external source.
Short or open-circuit sensor diode D1.
Short or open-circuit sensor diode D2.
NOTE
An error that causes continuous interrupts to be generated may be masked in its respective mask register, until the error can be alleviated.
REV. 0
–27–
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