ADT7470 Analog Devices, Inc., ADT7470 Datasheet - Page 38

• Manufacturer Part Number: ADT7470
• Description: Temperature Sensor Hub And Fan Controller
• Manufacturer: Analog Devices, Inc.

ADT7470
Table 53. Register 0x80. GPIO CONFIG (Power-On Default = 0x00)
Bit Name
<7> GPIO1_d
<6> GPIO1_p
<5> GPIO2_d
<4> GPIO2_p
<3> GPIO3_d
<2> GPIO3_p
<1> GPIO4_d
<0> GPIO4_p
Table 54. Register 0x81. GPIO Status (Power-On Default = 0x00)
Bit Name
<7:4> GPIO_s
<7> GPIO4_s
<6> GPIO3_s
<5> GPIO2_s
<4> GPIO1_s
<3:0> Reserved
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Description
This bit sets the direction of GPIO 1 when the PWM1 pin is configured as GPIO.
1= output; 0 = input.
Data for GPIO 1 is set by the LSB of the PWM1 min duty cycle register.
This bit sets the polarity of GPIO 1 when the PWM1 pin is configured as GPIO.
1 = active high; 0 = active low.
This bit sets the direction of GPIO 2 when the PWM2 pin is configured as GPIO.
1= output; 0 = input.
Data for GPIO 2 is set by the LSB of the PWM2 min duty cycle register.
This bit sets the polarity of GPIO 2 when the PWM2 pin is configured as GPIO.
1 = active high; 0 = active low.
This bit sets the direction of GPIO 3 when the PWM3 pin is configured as GPIO.
1= output; 0 = input.
Data for GPIO 3 is set by the LSB of the PWM3 min duty cycle register.
This bit sets the polarity of GPIO 3 when the PWM3 pin is configured as GPIO.
1 = active high; 0 = active low.
This bit sets the direction of GPIO 4 when the PWM4 pin is configured as GPIO.
1= output; 0 = input.
Data for GPIO 4 is set by the LSB of the PWM4 min duty cycle register.
This bit sets the polarity of GPIO 4 when the PWM4 pin is configured as GPIO.
1 = active high; 0 = active low.
Description
These bits indicate the status of the GPIO when the corresponding PWM pin is configured
as GPIO.
When GPIO is configured as an input, these bits are read-only. They are set when the input
is asserted. (Asserted can be high or low depending on the setting of the GPIO polarity.)
When GPIO is configured as an output, these bits are read/write. Setting these bits asserts
the GPIO output. (Asserted can be high or low depending on the setting of GPIO4
polarity.) See Register 0x36<7:0> (Table 25).
This bit indicates the status of GPIO 4 when the PWM4 pin is configured as GPIO.
This bit indicates the status of GPIO 3 when the PWM3 pin is configured as GPIO.
This bit indicates the status of GPIO 2 when the PWM2 pin is configured as GPIO.
This bit indicates the status of GPIO 1 when the PWM1 pin is configured as GPIO.
Test Bit. For ADI use only.
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