ADT7476 Analog Devices, Inc., ADT7476 Datasheet - Page 71

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

Bit
[6]
[7]
1
Table 59. Register 0x7D—Configuration Register 4 (Power-On Default = 0x00)
Bit
[1:0]
[2]
[3]
[4]
[5]
[6]
[7]
1
Table 60. Register 0x7E—Manufacturer’s Test Register 1 (Power-On Default = 0x00)
Bit
[7:0]
Table 61. Register 0x7F—Manufacturer’s Test Register 2 (Power-On Default = 0x00)
Bit
[7:0]
This register becomes read-only when the Configuration Register 1 LOCK bit is set to 1. Any subsequent attempts to write to this register fail.
This register becomes read-only when the Configuration Register 1 LOCK bit is set to 1. Any subsequent attempts to write to this register fail.
Name
Reserved
Name
Reserved
Name
Local
THERM
Output only
R2 THERM
Output only
Name
Pin14Func
THERM
Disable
Max/Speed
on THERM
BpAtt 2.5V
BpAtt V
BpAtt 5V
BpAtt 12V
CCP
R/W
Read-only
R/W
Read-only
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
1
Description
Manufacturer’s test register. These bits are reserved for manufacturer’s test purposes and should not
be written to under normal operation.
Description
Manufacturer’s test register. These bits are reserved for manufacturer’s test purposes and should not
be written to under normal operation.
Description
Local THERM = 1 , THERM temperature limit functionality enabled for local temperature channel; that
is, THERM is bidirectional. Local THERM = 0, THERM is a timer input only.
THERM can also be disabled on any channel by:
R2 THERM = 1 , THERM temperature limit functionality enabled for Remote 2 temperature channel,
that is, THERM is bidirectional. R2 THERM = 0, THERM is a timer input only.
THERM can also be disabled on any channel by:
Description
These bits set the functionality of Pin 14.
THERM Disable = 0, THERM overtemperature output is enabled assuming THERM is correctly
configured (Registers 0x78, 0x7C, 0x7D).
THERM Disable = 1, THERM overtemperature output is disabled on all channels.
THERM can also be disabled on any channel by:
Max/Speed on THERM = 0, fans go to full speed when THERM temperature limit is exceeded.
Max/Speed on THERM = 1, fans go to maximum speed (Register 0x38, Register 0x39, and Register
0x3A) when THERM temperature limit is exceeded.
Bypass 2.5 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.25 V (0xFF).
Bypass V
2.25 V (0xFF).
Bypass 5 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.25 V (0xFF).
Bypass 12 V attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
2.25 V (0xFF).
In Offset 64 mode, writing −64°C to the appropriate THERM temperature limit.
In twos complement mode, writing −128°C to the appropriate THERM temperature limit.
In Offset 64 mode, writing −64°C to the appropriate THERM temperature limit.
In twos complement mode, writing −128°C to the appropriate THERM temperature limit.
In Offset 64 mode, writing −64°C to the appropriate THERM temperature limit.
In twos complement mode, writing −128°C to the appropriate THERM temperature limit.
00 = TACH4 (default)
01 = THERM
10 = SMBALERT
11 = GPIO6
CCP
attenuator. When set, the measurement scale for this channel changes from 0 V (0x00) to
Rev. B | Page 71 of 72
ADT7476