Table of Contents
Advertisement
Address
R/W
Description
0x50
R/W
Local Temp Low
Limit
0x51
R/W
Local Temp High
Limit
0x52
R/W
Remote 2 Temp
Low Limit
0x53
R/W
Remote 2 Temp
High Limit
0x54
R/W
TACH1 Minimum
Low Byte
0x55
R/W
TACH1 Minimum
High Byte
0x56
R/W
TACH2 Minimum
Low Byte
0x57
R/W
TACH2 Minimum
High Byte
0x58
R/W
TACH3 Minimum
Low Byte
0x59
R/W
TACH3 Minimum
High Byte
0x5A
R/W
TACH4 Minimum
Low Byte
0x5B
R/W
TACH4 Minimum
High Byte
0x5C
R/W
PWM1
Configuration
Register
0x5D
R/W
PWM2
Configuration
Register
0x5E
R/W
PWM3
Configuration
Register
0x5F
R/W
Remote 1
T
/PWM 1
RANGE
Frequency
0x60
R/W
Local T
/PWM
RANGE
2 Frequency
0x61
R/W
Remote 2
T
/PWM 3
RANGE
Frequency
0x62
R/W
Enhance
Acoustics Reg. 1
0x63
R/W
Enhance
Acoustics Reg. 2
0x64
R/W
PWM1 Min Duty
Cycle
0x65
R/W
PWM2 Min Duty
Cycle
0x66
R/W
PWM3 Min Duty
Cycle
0x67
R/W
Remote 1 Temp
T
MIN
0x68
R/W
Local Temp T
0x69
R/W
Remote 2 Temp
T
MIN
0x6A
R/W
Remote 1 THERM
Temp Limit
0x6B
R/W
Local THERM
Temp Limit
Bit 7
Bit 6
Bit 5
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
15
14
13
7
6
5
15
14
13
7
6
5
15
14
13
7
6
5
15
14
13
BHVR
BHVR
BHVR
BHVR
BHVR
BHVR
BHVR
BHVR
BHVR
RANGE
RANGE
RANGE
RANGE
RANGE
RANGE
RANGE
RANGE
RANGE
MIN3
MIN2
MIN1
EN2
ACOU2
ACOU2
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
MIN
7
6
5
7
6
5
7
6
5
Bit 4
Bit 3
Bit 2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
12
11
10
4
3
2
12
11
10
4
3
2
12
11
10
4
3
2
12
11
10
INV
SLOW
SPIN
INV
SLOW
SPIN
INV
SLOW
SPIN
RANGE
HF/LF
FREQ
Fan 1
RANGE
HF/LF
FREQ
Fan 2
HF/LF
RANGE
FREQ
Fan 3
SYNC
EN1
ACOU
ACOU2
EN3
ACOU3
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
Rev. 0 | Page 57 of 76
ADT7473
Bit 1
Bit 0
Default
1
0
0x01
1
0
0xFF
1
0
0x01
1
0
0xFF
1
0
0xFF
9
8
0xFF
1
0
0xFF
9
8
0xFF
1
0
0xFF
9
8
0xFF
1
0
0xFF
9
8
0xFF
SPIN
SPIN
0x82
SPIN
SPIN
0x82
SPIN
SPIN
0x82
FREQ
FREQ
0xCC
FREQ
FREQ
0xCC
FREQ
FREQ
0xCC
ACOU
ACOU
0x00
ACOU
ACOU3
0x00
3
1
0
0x80
1
0
0x80
1
0
0x80
1
0
0x9A
1
0
0x9A
1
0
0x9A
1
0
0xA4
1
0
0xA4
Lockable?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Advertisement
Table of Contents
