emc1413 Standard Microsystems Corp., emc1413 Datasheet - Page 28

• Manufacturer Part Number: emc1413
• Description: 1?c Temperature Sensor With Beta Compensation And Selectable Address
• Manufacturer: Standard Microsystems Corp.

Revision 1.37 (12-23-09)
6.1
6.2
REGISTER
ADDRESS
ADDR
00h
29h
01h
10h
23h
24h
2Ah
2Bh
FDh
FEh
FFh
40h
R/W
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.
As shown in
with the high byte representing the integer value and the low byte representing the fractional value left
justified to occupy the MSBits.
Data Read Interlock
Temperature Data Registers
R
R
R
R
R
R
R
R
R/W
R/W
R
R
R
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
Internal Diode
Internal Diode
1 High Byte
2 High Byte
3 High Byte
REGISTER
1 Low Byte
2 Low Byte
3 Low Byte
High Byte
Low Byte
Table 6.2, "Temperature Data
Table 6.1 Register Set in Hexadecimal Order (continued)
REGISTER NAME
Filter Control
Product ID
SMSC ID
Revision
Table 6.2 Temperature Data Registers
128
128
128
128
B7
0.5
0.5
0.5
0.5
DATASHEET
0.25
0.25
0.25
0.25
1°C Temperature Sensor with Beta Compensation and Selectable Address
B6
64
64
64
64
Controls the digital filter setting for
Stores a fixed value that identifies
represents the revision number
the External Diode 1 channel
28
Stores a fixed value that
Stores a fixed value that
Registers", all temperatures are stored as an 11-bit value
0.125
0.125
0.125
0.125
B5
32
32
32
32
represents SMSC
each product
FUNCTION
B4
16
16
16
16
-
-
-
-
B3
8
8
8
8
-
-
-
-
B2
4
4
4
4
-
-
-
-
B1
DEFAULT
Table 6.25
SMSC EMC1413 / EMC1414
2
2
2
2
-
-
-
-
VALUE
5Dh
00h
03h
B0
1
1
1
1
-
-
-
-
DEFAULT
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Datasheet
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