adt7476a Analog Devices, Inc., adt7476a Datasheet - Page 69

• Manufacturer Part Number: adt7476a
• Description: Dbcool Remote Thermal Controller And Voltage Monitor
• Manufacturer: Analog Devices, Inc.

Table 55. Register 0x7C—Configuration Register 5 (Power-On Default = 0x01)
Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
1
This register becomes read-only when the Configuration Register 1 lock bit is set to 1. Any further attempts to write to this register have no effect.
Name
2sC
TempOffset
GPIO6D
GPIO6P
VID/GPIO
R1 THERM
Local
THERM
R2 THERM
R/W
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
1
Description
2sC = 1 sets the temperature range to the twos complement temperature range.
2sC = 0 changes the temperature range to the Offset 64 temperature range. When this bit is changed,
the ADT7476A interprets all relevant temperature register values as defined by this bit.
TempOffset = 0 sets offset range to −63°C to +64°C with 0.5°C resolution.
TempOffset = 1 sets offset range to −63°C to +127°C with 1°C resolution.
These settings apply to Remote 1, Local, and Remote2 temperature offset registers (0x70, 0x71, and 0x72).
GPIO6 direction. When GPIO6 function is enabled, this determines whether GPIO6 is an input (0) or
an output (1).
GPIO6 polarity. When the GPIO6 function is enabled and is programmed as an output, this bit
determines whether the GPIO6 is active low (0) or high (1).
VID/GPIO = 0 enables VID functionality on Pin 5, Pin 6, Pin 7, Pin 8, and Pin 19.
VID/GPIO = 1 enables GPIO functionality on Pin 5, Pin 6, Pin 7, Pin 8, and Pin 19.
R1 THERM = 1 enables THERM temperature limit functionality for Remote 1 temperature channel;
that is, THERM is bidirectional. R1 THERM = 0 indicates THERM is a timer input only.
THERM can also be disabled on any channel by:
Local THERM = 1 enables THERM temperature limit functionality for local temperature channel;
that is, THERM is bidirectional. Local THERM = 0 indicates THERM is a timer input only.
THERM can also be disabled on any channel by:
R2 THERM = 1 enables THERM temperature limit functionality for Remote 2 temperature channel;
that is, THERM is bidirectional. R2 THERM = 0 indicates THERM is a timer input only.
THERM can also be disabled on any channel by:
Writing −64˚C to the appropriate THERM temperature limit in Offset 64 mode.
Writing −128˚C to the appropriate THERM temperature limit in twos complement mode.
Writing −64°C to the appropriate THERM temperature limit in Offset 64 mode.
Writing −128°C to the appropriate THERM temperature limit in twos complement mode.
Writing −64°C to the appropriate THERM temperature limit in Offset 64 mode.
Writing −128°C to the appropriate THERM temperature limit in twos complement mode.
Rev. 0 | Page 69 of 72
ADT7476A