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ADT7473
REGISTER TABLES
Table
17. A
DT 73 Registers
74
Addre
ss
R/W
Description
0x21
R
V
Readin
g
CCP
0x22
R
V
Reading
CC
0x25
R
Remote 1
Temperatu
re
0x26
R
Local
Temperature
0x27
R
Remote 2
Temperature
0x28
R
TACH1
Low Byte
0x29
R
TACH1 High Byte
0x2A
R
TACH2 Low Byte
0x2B
R
TACH2 High Byte
0x2C
R
TACH3 Low By
0x2D
R
TACH3
High Byte
0x2E
R
TACH4 Low Byte
0x2F
R
TACH4 High
0x30
R/W
PWM1 Current
Duty Cycle
0x31
R/W
PWM2 Curr
ent
Duty Cycle
0x32
R/W
PWM3 Current
Duty Cycle
0x33
R/W
Remote 1
Operating
Point
0x34
R/W
Local Temp
Operating Poin
0x35
R/W
Remote 2
Operating Poin
0x36
R/W
Dynamic T
MIN
Control Reg. 1
0x37
R/W
Dynamic T
MIN
Control Reg. 2
0x38
R/W
PWM1 Max D
Cycle
0x39
R/W
PWM2 Max
Cycle
0x3A
R/W
PWM3 Max
Cycle
0x3D
R
Device ID
Register
0x3E
R
Company ID
Number
0x40
R/W
Configuration
Register 1
0x41
R
Interrupt
S
tatus
Reg
ister 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
te
7
6
5
15
14
13
7
6
5
Byte
15
14
13
7
6
5
7
6
5
7
6
5
7
6
5
7
6
5
t
7
6
5
t
R2T
LT
R1T
CYR2
CYR2
CYL
uty
7
6
5
Duty
7
6
5
Duty
7
6
5
7
6
5
7
6
5
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
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
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
Rev. A | Page 58 of 76
Bit 1
Bit 0
Defau
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
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
lt
Lock
able?
Yes
Yes
Yes
Yes
Yes
Yes
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