1°C Triple SMBus Sensor with Resistance Error Correction
Datasheet
4.8
Register Allocation
The registers shown in Table 4.3 are accessible through the SMBus.
Table 4.3 EMC1033 Register Map
READ
ADDRESS
WRITE
ADDRESS
(HEX)
(HEX)
REGISTER NAME
POWER-ON DEFAULT
00
01
02
03
04
05
06
07
08
N/A
10
11
N/A
N/A
N/A
09
Internal Temperature Value High Byte
Remote 1 Temperature Value High Byte
Status
0000 0000
0000 0000
undefined
Configuration
0000 0000
0A
0B
0C
0D
0E
0F
Conversion Rate
0000 1000
Internal Temperature High Limit
Internal Temperature Low Limit
Remote 1 Temperature High Limit High Byte
Remote 1 Temperature Low Limit High Byte
One-Shot
0101 0101 (85°C)
0000 0000 (0°C)
0101 0101 (85°C)
0000 0000 (0°C)
N/A
11
Remote 1 Temperature Value Low Byte
Scratchpad Byte 1
0000 0000
0000 0000
12
13
14
15
16
17
18
19
1A
1B
1C
20
21
22
23
24
25
26
27
28
29
FD
FE
FF
12
Scratchpad Byte 2
0000 0000
13
Remote 1 Temperature High Limit Low Byte
Remote 1 Temperature Low Limit Low Byte
Remote 2 Temperature High Limit High Byte
Remote 2 Temperature Low Limit High Byte
Remote 2 Temperature High Limit Low Byte
Remote 2 Temperature Low Limit Low Byte
Remote 1 THERM Limit
0000 0000
14
0000 0000
15
0101 0101 (85°C)
0000 0000 (0°C)
0000 0000
16
17
18
0000 0000
19
0101 0101 (85°C)
0101 0101 (85°C)
0000 0000
1A
N/A
N/A
20
Remote 2 THERM Limit
Remote Diode Fault
Remote 2 Status
0000 0000
Internal THERM Limit
0101 0101 (85°C)
0000 1010 (10°C)
0000 0001
21
THERM Hysteresis
22
Consecutive ALERT
N/A
N/A
N/A
26
Remote 2 Temperature Value High Byte
Remote 2 Temperature Value Low Byte
Scratchpad Byte 3
0000 0000
0000 0000
0000 0000
Scratchpad Byte 4
0000 0000
27
Remote 1 Ideality Factor
0001 0010 (1.008)
0001 0010 (1.008)
0000 0000
28
Remote 2 Ideality Factor
29
Internal Temperature Value Low Byte
Product ID
0000 1011
N/A
N/A
Manufacture ID
0101 1101
Revision Number
0000 0001 Note 4.5
Note 4.5 Revision number may change. Please obtain the latest version of this document from the
SMSC web site.
At device power-up, the default values are stored in registers as shown. A power-on-reset is initiated
when power is first applied to the part and the VDD supply exceeds the POR threshold. Reads of
undefined registers will return 00h and writes to undefined registers will be ignored.
Revision 1.1 (01-19-07)
SMSC EMC1033
DATA1S4HEET
SMSC [ SMSC CORPORATION ]
