EMC6D102-CZC-TR Standard Microsystems (SMSC), EMC6D102-CZC-TR Datasheet - Page 57

• Manufacturer Part Number: EMC6D102-CZC-TR
• Manufacturer: Standard Microsystems (SMSC)

Specifications of EMC6D102-CZC-TR

• Operating Current: 3mA
• Operating Temperature Classification: Commercial
• Package Type: SSOP
• Lead Free Status / Rohs Status: Compliant

Fan Control Device with Hardware Monitoring and Acoustic Noise Reduction Features
Datasheet
SMSC EMC6D102
7.2.13
7.2.14
INPUT
Register
Address
Vccp
Register
Address
2.5V
VCC
12V
5V
4Ah
4Bh
4Ch
4Dh
44h
45h
46h
47h
48h
49h
4Eh
4Fh
50h
51h
52h
53h
VOLTAGE
NOMINAL
2.25V
12.0V
2.5V
3.3V
5.0V
Read/
Read/
Write
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
This register is read only – a write to this register has no effect.
Registers 44-4Dh: Voltage Limit Registers
Setting the Lock bit has no effect on these registers.
If a voltage input either exceeds the value set in the voltage high limit register or falls below or equals
the value set in the voltage low limit register, the corresponding bit will be set automatically by the
EMC6D102 in the interrupt status registers (41-42h). Voltages are presented in the registers at ¾ full
scale for the nominal voltage, meaning that at nominal voltage, each input will be C0h, as shown in
Table
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
7.5.
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
Internal High Temp
Internal Low Temp
Register Name
Vccp High Limit
VCC High Limit
Register Name
2.5V High Limit
Vccp Low Limit
2.5V Low Limit
VCC Low Limit
12V High Limit
12V Low Limit
5V High Limit
C0h
C0h
C0h
C0h
C0h
5V Low Limit
Table 7.5 Voltage Limits vs. Register Setting
MAXIMUM
VOLTAGE
16.00V
3.32V
3.00V
4.38V
6.64V
DATASHEET
(MSb)
(MSb)
Bit 7
Bit 7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
57
Bit 6
Bit 6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
SETTING AT
REGISTER
MAXIMUM
VOLTAGE
Bit 5
FFh
FFh
FFh
FFh
FFh
Bit 5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
5
Bit 4
Bit 4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Bit 3
Bit 3
VOLTAGE
3
3
3
3
3
3
3
3
3
3
MINIMUM
3
3
3
3
3
3
0V
0V
0V
0V
0V
Bit 2
Bit 2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Bit 1
MINIMUM VOLTAGE
Bit 1
Revision 0.4 (09-25-07)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
SETTING AT
REGISTER
(LSb)
(LSb)
Bit 0
Bit 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
00h
00h
00h
00h
00h
Default
Default
Value
Value
FFh
FFh
FFh
FFh
FFh
00h
00h
00h
00h
00h
81h
7Fh
81h
7Fh
81h
7Fh