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ADM1034
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36
Table 70. REGISTER 0X4A/4B, TACH1 PERIOD, POWER-ON DEFAULT 0XFF, LOCK = N, S/W RESET = Y
Bit
Name
R/W
Description
<7:0>
Fan 1 Period Count, LSB
R
This register contains the LSBs of the last measured Fan 1 revolution count.
<15:8>
Fan 1 Period Count, MSB
R
This register contains the MSBs of the last measured Fan 1 revolution count.
Table 71. REGISTER 0X4C/4D, TACH2 PERIOD, POWER-ON DEFAULT 0XFF, LOCK = N, S/W RESET = Y
Bit
Name
R/W
Description
<7:0>
Fan 2 Period Count, LSB
R
This register contains the LSBs of the last measured Fan 2 revolution count.
<15:8>
Fan 2 Period Count, MSB
R
This register contains the MSBs of the last measured Fan 2 revolution count.
Table 72. REGISTER 0X4E, THERM
 % ON-TIME, POWER-ON DEFAULT 0X00, LOCK = N, S/W RESET = Y
Bit
Name
R/W
Description
<7:0>
THERM
 % On-Time
R
Represents the % time of THERM
 activity within the time window set by the
configuration bits.
Table 73. REGISTER 0X4F, STATUS 1, POWER-ON DEFAULT 0X00, LOCK = N, S/W RESET = Y
Bit
Name
R/W
Description
7
Local Temp High
R
A 1 indicates that the local high limit has been tripped.
6
Local Temp Low
R
A 1 indicates that the local low limit has been tripped.
5
Remote 1 Temp High
R
A 1 indicates that the Remote 1 high limit has been tripped.
4
Remote 1 Temp Low
R
A 1 indicates that the Remote 1 low limit has been tripped.
3
Remote 1 Diode Error
R
A 1 indicates that a short or an open has been detected on the Remote 1
temperature channel. This test is completed once on each conversion.
2
Remote 2 Temp High
R
A 1 indicates that the Remote 2 high limit has been tripped.
1
Remote 2 Temp Low
R
A 1 indicates that the Remote 2 low limit has been tripped.
0
Remote 2 Diode Error
R
A 1 indicates that a short or an open has been detected on the Remote 2
temperature channel. This test is completed once on each conversion.
Table 74. REGISTER 0X50, STATUS 2, POWER-ON DEFAULT 0X00, LOCK = N, S/W RESET = Y
Bit
Name
R/W
Description
7
Local THERM
R
A 1 indicates that the local THERM
 limit has been tripped.
6
Remote 1 THERM
R
A 1 indicates that the Remote 1 THERM
 limit has been tripped.
5
Remote 2 THERM
R
A 1 indicates that the Remote 2 THERM
 limit has been tripped.
4
THERM
 % Exceeded
R
A 1 indicates that the THERM
 signal has been asserted for longer than the
programmed limit. Clear on Read. If THERM
 % Limit = 0x00 and THERM
 is
asserted, it is reasserted immediately.
3
THERM
 Asserted
R
A 1 indicates that the THERM
 signal has been asserted low as an input only.
2
THERM
_State
R
A 1 indicates that the THERM
 pin has been asserted low as an output.
1
Reserved
R
Reserved
0
Reserved
R
Reserved
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