ADT7476 Analog Devices, Inc., ADT7476 Datasheet - Page 68

• Manufacturer Part Number: ADT7476
• Description: Dbcool Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

ADT7476
Table 50. Register 0x74—Interrupt Mask Register 1 (Power-On Default = 0x00)
Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
Table 51. Register 0x75—Interrupt Mask Register 2 (Power-On Default = 0x00)
Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
Table 52. Register 0x76—Extended Resolution Register 1
Bit
[1:0]
[3:2]
[5:4]
[7:6]
1
Table 53. Register 0x77—Extended Resolution Register 2
Bit
[1:0]
[3:2]
[5:4]
[7:6]
1
If this register is read, this register and the registers holding the MSB of each reading are frozen until read.
If this register is read, this register and the registers holding the MSB of each reading are frozen until read.
Name
2.5 V/ THERM
V
V
5V
R1T
LT
R2T
OOL
Name
12 V/VC
OVT
FAN1
FAN2
FAN3
F4P
D1
D2
Name
2.5 V
V
V
5 V
CCP
CC
Name
12 V
TDM1
LTMP
TDM2
CCP
CC
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read-only
Read-only
Read-only
Read-only
R/W
Read-only
Read-only
Read-only
Read-only
Description
2.5 V/ THERM = 1, masks SMBALERT for out-of-limit conditions on the 2.5 V/ THERM
V
V
5 V = 1, masks SMBALERT for out-of-limit conditions on the 5 V channel.
R1T = 1, masks SMBALERT for out-of-limit conditions on the Remote 1 temperature channel.
LT = 1, masks SMBALERT for out-of-limit conditions on the local temperature channel.
R2T = 1, masks SMBALERT for out-of-limit conditions on the Remote 2 temperature channel.
OOL = 1, masks SMBALERT for any out-of-limit condition in Interrupt Status Register 2.
Description
When Pin 21 is configured as a 12 V input, 12 V/VC = 1 masks SMBALERT for out-of-limit conditions on
the 12 V channel. When Pin 21 is programmed as VID5, this bit masks an SMBALERT if the VID5 VID code
bit changes.
OVT = 1, masks SMBALERT for overtemperature THERM conditions.
FAN1 = 1, masks SMBALERT for a Fan 1 fault.
FAN2 = 1, masks SMBALERT for a Fan 2 fault.
FAN3 = 1, masks SMBALERT for a Fan 3 fault.
If Pin 14 is configured as TACH 4, F4P = 1 masks SMBALERT for a Fan 4 fault.
If Pin 14 is configured as THERM, F4P = 1 masks SMBALERT for an exceeded THERM timer limit.
If Pin 14 is configured as GPIO6, F4P = 1 masks SMBALERT when GPIO6 is an input and GPIO6 is
asserted.
D1 = 1 masks SMBALERT for a diode open or short on a Remote 1 channel.
D2 = 1 masks SMBALERT for a diode open or short on a Remote 2 channel.
CCP
CC
= 1, masks SMBALERT for out-of-limit conditions on the V
Description
2.5 V LSBs. Holds the 2 LSBs of the 10-bit 2.5 V measurement.
V
V
5 V LSBs. Holds the 2 LSBs of the 10-bit 5 V measurement.
Local Temperature LSBs. Holds the 2 LSBs of the 10-bit local temperature measurement.
Remote 2 Temperature LSBs. Holds the 2 LSBs of the 10-bit Remote 2 temperature measurement.
Description
12 V LSBs. Holds the 2 LSBs of the 10-bit 12 V measurement.
Remote 1 Temperature LSBs. Holds the 2 LSBs of the 10-bit Remote 1 temperature measurement.
= 1, masks SMBALERT for out-of-limit conditions on the V
CCP
CC
LSBs. Holds the 2 LSBs of the 10-bit V
LSBs. Holds the 2 LSBs of the 10-bit V
1
1
Rev. B | Page 68 of 72
(Power-On Default = 0x00)
(Power-On Default = 0x00)
CC
CCP
measurement.
measurement.
CC
CCP
channel.
channel.
timer
channel.