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EMC6D100 데이터시트(PDF) 49 Page - SMSC Corporation

부품명 EMC6D100
상세설명  ENVIRONMENTAL MONITORING AND CONTROL DEVICE WITH AUTOMATIC FAN CAPABILITY
PDF  75 Pages
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제조업체  SMSC [SMSC Corporation]
홈페이지  http://www.smsc.com
Logo SMSC - SMSC Corporation

EMC6D100 데이터시트(HTML) 49 Page - SMSC Corporation

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Environmental Monitoring and Control Device
Datasheet
SMSC EMC6D100/EMC6D101
Page 49
Rev. 09-09-04
DATASHEET
8.15
Registers 44-4Dh, 73-78h: Voltage Limit Registers
REGISTER
ADDRESS
READ/
WRITE
REGISTER
NAME
BIT 7
(MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
DEFAULT
VALUE
44h
R/W
2.5V Low Limit
7
6
5
4
3
2
1
0
00h
45h
R/W
2.5V High Limit
7
6
5
4
3
2
1
0
FFh
46h
R/W
Vccp Low Limit
7
6
5
4
3
2
1
0
00h
47h
R/W
Vccp High Limit
7
6
5
4
3
2
1
0
FFh
48h
R/W
VCC Low Limit
7
6
5
4
3
2
1
0
00h
49h
R/W
VCC High Limit
7
6
5
4
3
2
1
0
FFh
4Ah
R/W
5V Low Limit
7
6
5
4
3
2
1
0
00h
4Bh
R/W
5V High Limit
7
6
5
4
3
2
1
0
FFh
4Ch
R/W
12V Low Limit
7
6
5
4
3
2
1
0
00h
4Dh
R/W
12V High Limit
7
6
5
4
3
2
1
0
FFh
73h
R/W
3.3V Low Limit
7
6
5
4
3
2
1
0
00h
74h
R/W
3.3V High Limit
7
6
5
4
3
2
1
0
FFh
75h
R/W
1.5 Low Limit
7
6
5
4
3
2
1
0
00h
76h
R/W
1.5 High Limit
7
6
5
4
3
2
1
0
FFh
77h
R/W
1.8 Low Limit
7
6
5
4
3
2
1
0
00h
78h
R/W
1.8 High Limit
7
6
5
4
3
2
1
0
FFh
Note: registers 73h-78h are applicable to the EMC6D100 only.
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
EMC6D100/EMC6D101 in the interrupt status registers (41-42h, 7Dh). 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 8.4.
Table 8.4 – Voltage Limits vs. Register Setting
INPUT
NOMINAL
VOLTAGE
REGISTER
SETTING AT
NOMINAL
VOLTAGE
MAXIMUM
VOLTAGE
REGISTER
SETTING AT
MAXIMUM
VOLTAGE
MINIMUM
VOLTAGE
REGISTER
SETTING AT
MINIMUM
VOLTAGE
1.5V
1.5V
C0h
1.99V
FFh
0V
00h
1.8V
1.8V
C0h
2.39V
FFh
0V
00h
2.5V
2.5V
C0h
3.32V
FFh
0V
00h
Vccp
2.25V
C0h
3.00V
FFh
0V
00h
VCC
3.3V
C0h
4.38V
FFh
0V
00h
3.3V
3.3V
C0h
4.38V
FFh
0V
00h
5V
5.0V
C0h
6.64V
FFh
0V
00h
12V
12.0V
C0h
16.00V
FFh
0V
00h
Note: The voltages 1.5V, 1.8V and 3.3V in the table above are applicable to the EMC6D100 only.



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