EMC1046 Standard Microsystems Corp., EMC1046 Datasheet - Page 22

• Manufacturer Part Number: EMC1046
• Description: 1 Degree C Multiple Temperature Sensor With Beta Compensation And Hottest Of Thermal Zones
• Manufacturer: Standard Microsystems Corp.

Revision 0.66 (06-02-08)
5.1
5.2
ADDR
00h
29h
01h
10h
23h
24h
2Ah
2Bh
41h
42h
43h
44h
45h
46h
Data Read Interlock
Temperature Data Registers
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.
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. The data format is
standard 2’s complement from -64°C to 127.875°C as shown in
R
R
R
R
R
R
R
R
R
R
R
R
R
R
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
External Diode
Internal Diode
Internal Diode
Diode1 High
2 High Byte
3 High Byte
4 High Byte
5 High Byte
6 High Byte
REGISTER
1 Low Byte
2 Low Byte
3 Low Byte
4 Low Byte
5 Low Byte
6 Low Byte
High Byte
Low Byte
External
Byte
Table 5.2 Temperature Data Registers
Sign
Sign
Sign
Sign
Sign
Sign
Sign
B7
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1°C Multiple Temperature Sensor with Beta Compensation and Hottest of Thermal Zones
DATASHEET
0.25
0.25
0.25
0.25
0.25
0.25
0.25
B6
64
64
64
64
64
64
64
22
0.125
0.125
0.125
0.125
0.125
0.125
0.125
B5
32
32
32
32
32
32
32
B4
16
16
16
16
16
16
16
-
-
-
-
-
-
-
B3
8
8
8
8
8
8
8
-
-
-
-
-
-
-
Table
B2
4
4
4
4
4
4
4
-
-
-
-
-
-
-
5.3.
B1
2
2
2
2
2
2
2
-
-
-
-
-
-
-
SMSC EMC1046/EMC1047
B0
1
1
1
1
1
1
1
-
-
-
-
-
-
-
DEFAULT
Datasheet
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00h
00h
00h
00h
00h
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