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ADT7490ARQZ-R7 Datasheet(PDF) 47 Page - ON Semiconductor

Part # ADT7490ARQZ-R7
Description  dBCool Remote Thermal Monitor and Fan Controller with PECI Interface
PDF  75 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

ADT7490ARQZ-R7 Datasheet(HTML) 47 Page - ON Semiconductor

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ADT7490
http://onsemi.com
47
Table 20. ADT7490 Registers
Addr
Lock-
able
De-
fault
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Desc
R/W
0x79
R
THERM
Timer
Status
TMR
TMR
TMR
TMR
TMR
TMR
TMR
ASRT/
TMR0
0x00
−
0x7A
R/W
THERM
Timer
Limit
LIMT
LIMT
LIMT
LIMT
LIMT
LIMT
LIMT
LIMT
0x00
−
0x7B
R/W
TACH
Pulses per
Revolution
FAN4
FAN4
FAN3
FAN3
FAN2
FAN2
FAN1
FAN1
0x55
−
0x7C
R/W
Config.
Register 5
R2
THERM
Output
Only
Local
THERM
Output
Only
R1
THERM
Output
Only
PECI
R1
THERM
Output
Only
RES
RES
Temp
Offset
TWOS
COMPL
0x01
Yes
0x7D
R/W
Config.
Register 4
BpAtt
+12VIN
BpAtt
+5VIN
BpAtt
VCCP
BpAtt
+2.5VIN
Max/Full
on
THERM
THERM
Disable
Pin 14
Func
Pin 14
Func
0x00
Yes
0x7E
R
Test 1
Do not write to this register
0x00
Yes
0x7F
R
Test 2
Do not write to this register
0x00
Yes
0x80
R/W
GPIO
Config.
Register
GPIO1
DIR
GPIO2
DIR
GPIO1
POL
GPIO2
POL
GPIO1
GPIO2
RES
RES
0x00
−
0x81
R
Interrupt
Status 4
VTT
IMON
PECI3
PECI2
PECI1
RES
RES
RES
0x00
−
0x82
R/W
Interrupt
Mask 3
OOL
RES
RES
RES
OVT
COMM
DATA
PECI0
0x00
−
0x83
R/W
Interrupt
Mask 4
VTT
IMON
PECI3
PECI2
PECI1
RES
RES
RES
0x00
−
0x84
R/W
VTT Low
Limit
7
6
5
4
3
2
1
0
0x00
Yes
0x85
R/W
IMON Low
Limit
7
6
5
4
3
2
1
0
0x00
Yes
0x86
R/W
VTT High
Limit
7
6
5
4
3
2
1
0
0xFF
Yes
0x87
R/W
IMON High
Limit
7
6
5
4
3
2
1
0
0xFF
Yes
0x88
R/W
PECI
Config. 2
#CPU
#CPU
DOM1
DOM2
DOM3
RES
RES
RES
0x00
Yes
0x89
R
TEST 3
Do not write to this register
0x00
Yes
0x8A
R/W
PECI
Operating
Point
7
6
5
4
3
2
1
0
0xFB
Yes
0x8B
R/W
Remote 1
Operating
Point
7
6
5
4
3
2
1
0
0x64
Yes
0x8C
R/W
Local
Temp.
Operating
Point
7
6
5
4
3
2
1
0
0x64
Yes
0x8D
R/W
Remote 2
Operating
Point
7
6
5
4
3
2
1
0
0x64
Yes
0x8E
R/W
Dynamic
TMIN
Control
Reg. 1
R2T
LT
R1T
PHTR2
PHTL
PHTR1
VCCPLO
CYR2
0x00
Yes
0x8F
R/W
Dynamic
TMIN
Control
Reg. 2
CYR2
CYR2
CYL
CYL
CYL
CYR1
CYR1
CYR1
0x00
Yes
0x90
R/W
Dynamic
TMIN
Control
Reg. 3
PECI
PHTP
CYP
CYP
CYP
RES
RES
RES
0x00
Yes



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