EMC6D103S-CZC SMSC, EMC6D103S-CZC Datasheet - Page 65

• Manufacturer Part Number: EMC6D103S-CZC
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC6D103S-CZC

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

Fan Control Device with High Frequency PWM Support and Hardware Monitoring Features
Datasheet
SMSC EMC6D103
8.2.14
Register
Address
4Eh
4Fh
50h
51h
52h
53h
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 EMC6D103 in the Interrupt Status Register 1 (41h). For example,
if 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
Table
Remote Diode 1 High Temp
Remote Diode 2 High Temp
Remote Diode 1 Low Temp
Remote Diode 2 Low Temp
Table 8.22 Registers 4E-53h: Temperature Limit Registers
Internal High Temp
TEMPERATURE
Internal Low Temp
Register Name
8.23.
Table 8.23 Temperature Limits vs. Register Settings
-127 ° c
127 ° c
-50 ° c
50 ° c
0 ° c
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DATASHEET
LIMIT (DEC)
(MSb)
Bit 7
7
7
7
7
7
7
-127
127
-50
50
0
65
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Bit 6
6
6
6
6
6
6
Bit 5
5
5
5
5
5
5
LIMIT (HEX)
Bit 4
4
4
4
4
4
4
CEh
7Fh
81h
00h
32h
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.
.
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.
Bit 3
3
3
3
3
3
3
Bit 2
2
2
2
2
2
2
Bit 1
Revision 0.3 (03-01-07)
1
1
1
1
1
1
(LSb)
Bit 0
0
0
0
0
0
0
Default
Value
7Fh
7Fh
7Fh
81h
81h
81h