1°C Multiple Temperature Sensor with HW Thermal Shutdown & Hottest of Thermal Zones
Datasheet
Table 5.9 Temperature Limit Registers (continued)
ADDR.
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
54h
R/W
External
Diode 5 High
Limit High
Byte
Sign
64
32
16
8
4
2
1
55h
(85°C)
55h
56h
57h
58h
59h
5Ah
5Bh
R/W
R/W
R/W
R/W
R/W
R/W
R/W
External
Diode 5 Low
Limit High
Byte
Sign
0.5
64
0.25
0.25
64
32
16
-
8
-
4
-
2
-
1
-
00h
(0°C)
External
Diode 5 High
Limit Low
Byte
0.125
0.125
32
00h
00h
External
Diode 5 Low
Limit Low
Byte
0.5
-
-
-
-
-
External
Diode 6 High
Limit High
Byte
Sign
Sign
0.5
16
16
-
8
8
-
4
4
-
2
2
-
1
1
-
55h
(85°C)
External
Diode 6 Low
Limit High
Byte
64
32
00h
(0°C)
External
Diode 6 High
Limit Low
Byte
0.25
0.25
0.125
0.125
00h
00h
External
Diode 6 Low
Limit Low
Byte
0.5
-
-
-
-
-
The device contains both high and low limits for all temperature channels. If the measured temperature
meets or exceeds the high limit, then the corresponding status bit is set. Likewise, if the measured
temperature is less than the low limit, the corresponding status bit is set.
The limit registers with multiple addresses are fully accessible at either address.
When the device is in standby mode, updating the limit registers will have no affect until the next
conversion cycle occurs. This can be initiated via a write to the One Shot Register or by clearing the
RUN / STOP bit in the Configuration Register (see Section 5.4).
5.7
One Shot Register
Table 5.10 One Shot Register
ADDR.
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
0Fh
W
One Shot
Writing to this register initiates a single conversion cycle. Data
is not stored and always reads 00h
00h
SMSC EMC1046/EMC1047
Revision 0.62 (03-05-08)
DATA2S7HEET
SMSC [ SMSC CORPORATION ]
