ADT7473 Analog Devices, Inc., ADT7473 Datasheet - Page 60

• Manufacturer Part Number: ADT7473
• Description: Dbcool Remote Thermal Monitor And Fan Controller
• Manufacturer: Analog Devices, Inc.

ADT7473
Address
0x6C
0x6D
0x6E
0x6F
0x70
0x71
0x72
0x73
0x74
0x75
0x76
0x77
0x78
0x79
0x7A
0x7B
0x7C
0x7D
0x7E
0x7F
Table 18. Voltage Reading Registers (Power-On Default = 0x00)
Register Address
0x21
0x22
1
2
3
If the extended resolution bits of these readings are also being read, the extended resolution registers (Register 0x76 and Register 0x77) must be read first. Once the
extended resolution registers have been read, the associated MSB reading registers are frozen until read. Both the extended resolution registers and the MSB registers
are frozen.
If V
V
CC
CCP
(Pin 3) is the supply voltage for the ADT7473.
Lo (Bit 1 of the Dynamic T
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
R/W
R/W
R
R
/W
Description
Re ote 2 THERM
Tem
Rem
Loca
Hyst
Re ote 2
Tem
Hyst
XNO
Enab
Remote
Tem
Offs
Loca
Temperatu
Of
Rem
Tem
Offs
Con
Re ster 2
Inte
Register
Inte
Regi
Ext nded
Reso
Exte
Reso
Con
Reg
TH RM Timer
Status Register
THERM Timer
Limi
TA H Pulses per
Revo
Con
Regi
Co figuration
Regi
Test Register 2
Test R
m
fs
gi
m
C
E
n
e
rrupt Mask
rrupt Mask
ister
et
et
et
figuration
figuration
figuration
t Register
p Limit
eresis
p/T
eresis
perature
perature
ster 2
nded
ster 5
ster 4
ote 1 and
R Tree Test
ote 2
l Temp/T
l
lution 1
lution 2
lution
le
egister 1
MIN
1
1
3
MIN
R/W
Read only
Read only
re
Control Register 1, 0x36) is set, V
MIN
Bit 7
7
HYSR1
HYSR2
RES
7
7
7
SHDN
OOL
D2
RES
TDM2
DC4
TMR
LIMT
FAN4
R2
THERM
RES
Bit 6
6
HYSR1
HYSR2
RES
6
6
6
CONV
R2T
D1
RES
TDM2
DC3
TMR
LIMT
FAN4
Local
THERM
BpAtt
V
Description
Reflects the voltage measurement at the V
Reflects the voltage measurement at the V
CCP
Bit 5
5
HYSR1
HYSR2
RES
5
5
5
ATTN
LT
F4P
V
LTMP
DC2
TMR
LIMT
FAN3
R1
THERM
RES
CCP
CC
can control the sleep state of the ADT7473.
Rev. A | Page 60 of 76
Do not write to these registers
Do not write to these registers
Bit 4
4
HYSR1
HYRS
RES
4
4
4
AVG
R1T
FAN3
V
LTMP
DC1
TMR
LIMT
FAN3
RES
RES
CC
1
Bit 3
3
HYSL
RES
FAN3
Detect
V
TDM1
FAST
LIMT
FAN2
GPIOP
Max/
Full on
THERM
RES
3
3
3
RES
FAN2
TMR
CCP
Bit 2
2
HYSL
RES
RES
2
2
2
FAN2
Detect
V
FAN1
V
TDM1
BOOST
TMR
LIMT
FAN2
GPIOD
THERM
Disable
CC
CCP
CCP
CC
input on Pin 3 (8 MSBs of reading).
input on Pin 14 (8 MSBs of reading).
Bit 1
1
HYSL
RES
RES
1
1
1
FAN1
Detect
V
OVT
RES
RES
THERM
TMR
LIMT
FAN1
Temp
Offset
PIN9
FUNC
CCP
Bit 0
0
HYSL
RES
XEN
0
0
0
FAN
Presence
DT
RES
RES
RES
RES
ALERT
Enable
ASRT/TMRO
LIMT
FAN1
TWOS
COMPL
PIN9FUNC
Default
0xA4
0x44
0x40
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0X55
0x00
0x00
0x00
0x00
3
2
Lockable?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes