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ADT7473
REGISTER TABLES
Table 15. ADT7473 Registers
Address
R/W
Description
0x21
R
V
Reading
CCP
0x22
R
V
Reading
CC
0x25
R
Remote 1
Temperature
0x26
R
Local
Temperature
0x27
R
Remote 2
Temperature
0x28
R
TACH 1 Low Byte
0x29
R
TACH 1 High Byte
0x2A
R
TACH 2 Low Byte
0x2B
R
TACH 2 High Byte
0x2C
R
TACH 3 Low Byte
0x2D
R
TACH 3 High Byte
0x2E
R
TACH 4 Low Byte
0x2F
R
TACH 4 High Byte
0x30
R/W
PWM1 Current
Duty Cycle
0x31
R/W
PWM2 Current
Duty Cycle
0x32
R/W
PWM3 Current
Duty Cycle
0x33
R/W
Remote 1
Operating Point
0x34
R/W
Local Temp
Operating Point
0x35
R/W
Remote 2
Operating Point
0x36
R/W
Dynamic T
MIN
Control Reg. 1
0x37
R/W
Dynamic T
MIN
Control Reg. 2
0x38
R/W
Max PWM 1 Duty
Cycle
0x39
R/W
Max PWM 2 Duty
Cycle
0x3A
R/W
Max PWM 3 Duty
Cycle
0x3D
R
Device ID
Register
0x3E
R
Company ID
Number
0x3F
R
Revision Number
0x40
R/W
Configuration
Register 1
0x41
R
Interrupt Status
Register 1
0x42
R
Interrupt Status
Register 2
0x46
R/W
V
Low Limit
CCP
0x47
R/W
V
High Limit
CCP
0x48
R/W
V
Low Limit
CC
0x49
R/W
V
High Limit
CC
0x4E
R/W
Remote 1 Temp
Low Limit
0x4F
R/W
Remote 1 Temp
High Limit
Bit 7
Bit 6
Bit 5
9
8
7
9
8
7
9
8
7
9
8
7
9
8
7
7
6
5
15
14
13
7
6
5
15
14
13
7
6
5
15
14
13
7
6
5
15
14
13
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
R2T
LT
R1T
CYR2
CYR2
CYL
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
VER
VER
VER
RES
TODIS
FSPDIS
OOL
R2T
LT
D2
D1
F4P
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
Rev. 0 | Page 56 of 76
Bit 4
Bit 3
Bit 2
6
5
4
6
5
4
6
5
4
6
5
4
6
5
4
4
3
2
12
11
10
4
3
2
12
11
10
4
3
2
12
11
10
4
3
2
12
11
10
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
PHTR2
PHTL
PHTR1
CYL
CYL
CYR1
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
VER
STP
STP
Vx1
FSPD
RDY
R1T
RES
V
CC
FAN3
FAN2
FAN1
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
4
3
2
Bit 1
Bit 0
Default
3
2
0x00
3
2
0x00
3
2
0x01
3
2
0x01
3
2
0x01
1
0
0x00
9
8
0x00
1
0
0x00
9
8
0x00
1
0
0x00
9
8
0x00
1
0
0x00
9
8
0x00
1
0
0x00
1
0
0x00
1
0
0x00
1
0
0xA4
1
0
0xA4
1
0
0xA4
V
LO
CYR2
0x00
CCP
CYR1
CYR1
0x00
1
0
0xFF
1
0
0xFF
1
0
0xFF
1
0
0x73
1
0
0x41
STP
STP
0x68
LOCK
STRT
0x01
V
RES
0x00
CCP
OVT
RES
0x00
1
0
0x00
1
0
0xFF
1
0
0x00
1
0
0xFF
1
0
0x01
1
0
0xFF
Lockable?
Yes
Yes
Yes
Yes
Yes
Yes
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