Datasheet

Data Sheet ADT7470
Rev. E | Page 37 of 40
Table 47. Register 0x7D. TMP05 Zone Select 2 (Power-On Default = 0x00).
Bit Name Read/Write
Description
[7:4] zone_fan3[3:0] Read/Write These bits determine which temperature zone controls Fan 3.
zone_fan3[3:0] Description
0000 max_temperature from Register 0x78 controls Fan 3.
0001 Temperature 1 from Register 0x20 controls Fan 3.
0010 Temperature 2 from Register 0x21 controls Fan 3.
0011 Temperature 3 from Register 0x22 controls Fan 3.
0100 Temperature 4 from Register 0x23 controls Fan 3.
0101 Temperature 5 from Register 0x24 controls Fan 3.
0110 Temperature 6 from Register 0x25 controls Fan 3.
0111 Temperature 7 from Register 0x26 controls Fan 3.
1000 Temperature 8 from Register 0x27 controls Fan 3.
1001 Temperature 9 from Register 0x28 controls Fan 3.
1010 Temperature 10 from Register 0x29 controls Fan 3.
[3:0] zone_fan4[3:0] Read/Write These bits determine which temperature zone controls Fan 4.
zone_fan4[3:0] Description
0000 max_temperature from Register 0x78 controls Fan 4.
0001 Temperature 1 from Register 0x20 controls Fan 4.
0010 Temperature 2 from Register 0x21 controls Fan 4.
0011 Temperature 3 from Register 0x22 controls Fan 4.
0100 Temperature 4 from Register 0x23 controls Fan 4.
0101 Temperature 5 from Register 0x24 controls Fan 4.
0110 Temperature 6 from Register 0x25 controls Fan 4.
0111 Temperature 7 from Register 0x26 controls Fan 4.
1000 Temperature 8 from Register 0x27 controls Fan 4.
1001 Temperature 9 from Register 0x28 controls Fan 4.
1010 Temperature 10 from Register 0x29 controls Fan 4.
Table 48. Register 0x7F. GPIO Enable (Power-On Default = 0x00).
Bit Name Read/Write Description
[7:6] Reserved Read/Write Reserved. Write 0x0 to these bits.
[5:4] Reserved Read/Write Reserved. This bit should be set to 0.
[3] GPIO1_en Read/Write PWM1 becomes a GPIO.
[2] GPIO2_en Read/Write PWM2 becomes a GPIO.
[1] GPIO3_en Read/Write PWM3 becomes a GPIO.
[0] GPIO4_en Read/Write PWM4 becomes a GPIO.