ADT7473 Analog Devices, Inc., ADT7473 Datasheet - Page 62

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

ADT7473
Table 23. Register 0x36—Dynamic T
Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
1
Thi
s re
N
C
P
PHTL
PHTR2
R1T
LT
R2T
V
gister be mes read-only hen the Configuration Register 1 lock bit is set to 1. Any subsequent attempts to write to this register fail.
YR2
CCP
HTR1
ame
LO
co
R/W
R
R/W
R
R/W
R/W
R/W
R/W
R/W
/W
/W
Descrip
MSB of
(Reg. 0x
in terms
found
V
value (R
• Statu Bit 1 in Interrupt Status Register 1 is set.
• SMBAL
• PROCHOT monitoring is disabled.
• Dynam
• The de
• Everyt
PHTR1 =
The ope
possible
PHTR1 =
program med value.
PHTL = 1 copies the local channel’s current temperature to the local operating point register if THERM is asserted. The
operating point contains the temperature at which THERM is ass
possible
PHTL = 0 ignores any THERM assertions on the THERM pin. The local temperature operating point register reflec
pro
PHT
The op
poss
PH
programmed value.
R1T =
adjusted based on the cur
R1T
the F
LT=1 e
based
LT = 0
the Fan Speed Control section.
R2T = 1 enables dynamic T
adjusted based on the current temperature, operating point, an
R2T = 0 d
the F
CCP
TR2
gra
LO =
R2
=
ible
an Speed C
an
w
1 enables dynamic T
0 disables dynamic T
disables dynamic T
to
s
nables dynamic T
on the current temperature, operating point, and high and low limits for this zone.
mmed value.
erating point contains the temperature at which
= 1 copies the Remote 2 current temperature to the Remote 2 operating point register if THERM is asserted.
= 0 ignores any THERM assertions on the THERM pin. The Remote 2 operating point register reflects its
3-bit remote 2 cycle value. The other two bits of the code reside in Dynamic T
hing is re-enabled once V
37). These three bits define the delay time between making subsequent T
egister 0x46), the following occurs:
vice is prevented from entering shutdown.
Speed Control section.
tion
rating point contains the temperature at which THERM
ERT is generated, if enabled.
ic T
of the number of monitoring cycles. The system has associated thermal time constants that need to be
without affecting system performance.
without aff
without affecting system performance.
1. When the power is supplied from 3.3 V STANDBY and the core voltage (V
1 copies the Remote 1 current temperature to the Remote 1 operating point register if THERM is asserted.
0 ignores any THERM assertions on the THERM pin. The Remote 1 operating point register reflects its
optimize the response of fans and the control loop.
isables dynamic T
MIN
control is disabled.
MIN
ontrol section.
Control Register 1 (Power-On Default =
ecting system performance.
MIN
MIN
rent temperature, operating point, and high and low limits for this zone.
MIN
MIN
MIN
control on the local temperature channel. The chosen T
MIN
control. The T
control on the Remote 1 temperature channel. The chosen T
control on the Remote 2 temperat
control. The T
control. The T
CCP
increases above the V
Rev. A | Page 62 of 76
MIN
MIN
MIN
value chosen is not adjusted, and the channel behaves as descr
value chosen is not adjusted, and the channel behaves as described
value chosen is not adjusted and the channel behaves as described in
THERM is asserted, allowing the system to run as quietly as
CCP
low limit.
0x00)
is asserted, allowing the system to run as quietly as
d high and low limits for this zone.
ure channel. The chosen T
erted. This allows the system to run as quietly as
1
MIN
MIN
CCP
adjustments in t
MIN
value is dynamically adjusted
) drops below its V
Control Register 2
MIN
MIN
value is dynamically
value is dynamically
he control loop,
CCP
low li
ibed in
ts its
mit
in