Multiple Channel 1°C Temperature Sensors with Beta Compensation
Datasheet
Table 7.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS
37h
40h
FDh
FDh
FEh
FFh
DEFAULT
VALUE
00h
00h
21h
25h
5Dh
04h
R/W
R
R/W
R
R
R
R
REGISTER NAME
Therm Limit Status
Filter Control
Product ID
(EMC1413)
Product ID
(EMC1414)
Manufacturer ID
Revision
FUNCTION
Status bits for the Therm Limits
Controls the digital filter setting for
the External Diode 1 channel
Stores a fixed value that identifies
the device
Stores a fixed value that identifies
the device
Stores a fixed value that
represents SMSC
Stores a fixed value that
represents the revision number
PAGE
7.1
Data Read Interlock
When any temperature channel high byte register is read, the corresponding low byte is copied into
an internal ‘shadow’ register. The user is free to read the low byte at any time and be guaranteed that
it will correspond to the previously read high byte. Regardless if the low byte is read or not, reading
from the same high byte register again will automatically refresh this stored low byte data.
7.2
Temperature Data Registers
Table 7.2 Temperature Data Registers
ADDR
00h
29h
01h
10h
23h
24h
R/W
R
R
R
R
R
R
REGISTER
Internal Diode
High Byte
Internal Diode
Low Byte
External Diode
1 High Byte
External Diode
1 Low Byte
External Diode
2 High Byte
External Diode
2 Low Byte
B7
128
0.5
128
0.5
128
0.5
B6
64
0.25
64
0.25
64
0.25
B5
32
0.125
32
0.125
32
0.125
B4
16
-
16
-
16
-
B3
8
-
8
-
8
-
B2
4
-
4
-
4
-
B1
2
-
2
-
2
-
B0
1
-
1
-
1
-
DEFAULT
00h
00h
00h
00h
00h
00h
As shown in
all temperatures are stored as an 11-bit value with the high byte representing
the integer value and the low byte representing the fractional value left justified to occupy the MSBits.
SMSC EMC1413 / EMC1414
29
Revision 1.41 (02-23-12)
DATASHEET
SMSC [ SMSC CORPORATION ]
