ADT7463 Analog Devices, ADT7463 Datasheet - Page 17

• Manufacturer Part Number: ADT7463
• Description: Dbcool Thermal Management Controller And Voltage Monitor
• Manufacturer: Analog Devices

STEP 9: DETERMINING THE HIGH AND LOW LIMITS FOR
EACH TEMPERATURE CHANNEL
The low limit defines the temperature at which the T
value will start to be increased if temperature falls
below this value. This has the net effect of reducing the
fan speed, allowing the system to get hotter. An inter-
rupt can be generated when the temperature drops
below the low limit.
The high limit defines the temperature at which the T
value will start to be reduced if temperature increases
above this value. This has the net effect of increasing fan
speed in order to cool down the system. An interrupt
can be generated when the temperature rises above the
high limit.
REV. 0
Figure 22. Dynamic T
MIN
MIN
–17–
MIN
Control in Operation
PROGRAMMING HIGH AND LOW LIMITS
There are six limit registers; a high limit and low limit
are associated with each temperature channel. These
8-bit registers allow the high and low limit temperatures
to be programmed with 1°C resolution.
TEMPERATURE LIMIT REGISTERS
Reg. 0x4E Remote 1 Temp Low Limit = 0x81
Reg. 0x4F Remote 1 Temp High Limit = 0x7F
Reg. 0x50 Local Temp Low Limit = 0x81
Reg. 0x51 Local Temp High Limit = 0x7F
Reg. 0x52 Remote 2 Temp Low Limit = 0x81
Reg. 0x53 Remote 2 Temp High Limit = 0x7F
AN-613