ADT7460 Analog Devices, Inc., ADT7460 Datasheet - Page 40

• Manufacturer Part Number: ADT7460
• Description: Dbcool? Remote Thermal Controller And Fan Controller
• Manufacturer: Analog Devices, Inc.

ADT7460
Table 51. Register 0x42—Interrupt Status Register 2 (Power-On Defaul
Bit
<0>
<1>
<2>
<3>
<4>
<5>
<6>
<7>
Table 52. Voltage Limit Registers
Register Address
0x44
0x45
0x48
0x49
Setting the Configuration Register 1 lock bit ha
High Limits: An interrupt is generated when a
Low
Table 53. Tem
Register Addre
0x4E
0x4F
0x50
0x51
0x52
0x53
Exceedin
Conf
High Limits: An interrupt is gene
Low Li
Limi
igura
mi
Name
RES
OVT
FAN1
FAN2
FAN3
F4P
D1
D2
g any of
ts: An in rrupt
ts: An in rrupt is gene ated when a value is equal to or below its low limit (≤ comparison).
tion
Regi
perature Limit Re
ss
R/
Read-Only
Read-Only
Read-Only
Read-Only
Read-Only
Read-Only
Read-Only
Read-Only
Read-Only
th
te
te
W
ster 1 lock bit has no effect on these registers.
ese temperat e limits by 1°C causes the appropriate status bit to be set in the interrupt status r
is gener
Description
Reserved for future use.
A 1 indicates that one of the THERM overte
o
A
PW
A
PW
A
PWM3 outpu is off.
A 1 indicates that Fan 4 has dropped below minimum speed or has stalled. This bit is NOT set when the
PWM3 output is off.
If Pin 9 is configured as the THERM timer input for THERM monitoring, this bit is set when the THERM
assertion time exceeds the limit programmed in the THERM Limit Register (Reg. 0x7A).
A 1 indicates either an open or short circuit on the Thermal Diode 1 inputs.
A 1 indicates either an open or short circuit on the Thermal Diode 2 inputs.
ur
r
R
R
R
R
R
R
R
f the status re
rated when a value exceeds its high limit (> comparison).
ated when a va
1 indicates th
1 indicates th
1 indicates th
gisters
ead/Writ
ead/Writ
ead/Writ
ead/Writ
ead/Writ
ead/Writ
/W
M1 output is off.
M2 output is off.
R/W
Read/Write
Read/Write
Read/Write
Read/Write
e
e
e
e
e
e
t
gister when the temperatur
value exceeds its high limit (> comparison).
at Fan 1 has dropped below
at Fan 2 has dropped below
at Fan 3 has dropped below
s no effect on these registers.
lue is equal to or below its low limit (≤ comparison).
Description
Remo
Remote 1 temperature high limit
Local temperature low limit
Local temperature high limit
Remote 2 temperature low limit
Remote 2 temperature high limit
Rev. C | Page 40 of 52
te 1 temperature low limit
Description
2.5 V Low Limit
2.5 V High Limit
V
V
CC
CC
Low Limit
High Limit
e drops below THERM − T
mperature limits has been ex
t = 0x00)
minimum speed or has stalled
minimum speed or has stalled
minimum speed or has stalled
HYST
Power-On Default
0x81
0x7F
Power-On Default
0x00
0xFF
0x00
0xFF
0x81
0x7F
0x81
0x7F
.
ceeded. This bit is cleared on a read
. This bit is NOT set when the
. This bit is NOT set when the
. This bit is NOT set when the
egister. Setting the