EMC2300-AZC-TR SMSC, EMC2300-AZC-TR Datasheet - Page 58

• Manufacturer Part Number: EMC2300-AZC-TR
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC2300-AZC-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Revision 0.32 (06-23-08)
8.2.11
INPUT
Vccp
Register
Address
VCC
4Eh
4Fh
50h
51h
52h
53h
VOLTAGE
NOMINAL
TEMPERATURE
2.25V
3.3V
Read/
Write
R/W
R/W
R/W
R/W
R/W
R/W
Registers 4E-53h: Temperature Limit Registers
Setting the Lock bit has no effect on these registers.
If an external temperature input or the internal temperature sensor either exceeds the value set in the
high limit register or is less than or equal to the value set in the low limit register, the corresponding
bit will be set automatically by the
the temperature reading from the Remote1- and Remote1+ inputs exceeds the Remote Diode 1 High
Temp register limit setting, Bit[4] D1 of the Interrupt Status Register 1 will be set. The temperature limits
in these registers are represented as 8 bit, 2’s complement, signed numbers in Celsius, as shown
below in
-127 ° c
127 ° c
-50 ° c
50 ° c
0 ° c
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Table
Remote Diode 1 High Temp
Remote Diode 2 High Temp
Remote Diode 1 Low Temp
Remote Diode 2 Low Temp
SETTING AT
REGISTER
VOLTAGE
NOMINAL
Table 8.19 Registers 4E-53h: Temperature Limit Registers
Internal High Temp
Internal Low Temp
Register Name
8.20.
C0h
C0h
Table 8.20 Temperature Limits vs. Register Settings
Table 8.18 Voltage Limits vs. Register Setting
MAXIMUM
VOLTAGE
3.00V
4.38V
DATASHEET
EMC2300
LIMIT (DEC)
(MSb)
Bit 7
7
7
7
7
7
7
-127
127
-50
50
0
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58
Bit 6
Fan Control Device with High Frequency PWM and Temperature Monitors
in the Interrupt Status Register 1 (41h). For example, if
6
6
6
6
6
6
SETTING AT
REGISTER
MAXIMUM
VOLTAGE
Bit 5
FFh
FFh
5
5
5
5
5
5
Bit 4
4
4
4
4
4
4
Bit 3
VOLTAGE
3
3
3
3
3
3
MINIMUM
0V
0V
Bit 2
2
2
2
2
2
2
LIMIT (HEX)
Bit 1
MINIMUM VOLTAGE
CEh
7Fh
81h
00h
32h
1
1
1
1
1
1
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SETTING AT
REGISTER
(LSb)
SMSC EMC2300
Bit 0
0
0
0
0
0
0
00h
00h
Datasheet
Default
Value
7Fh
7Fh
7Fh
81h
81h
81h