EVB-EMC1043 SMSC, EVB-EMC1043 Datasheet - Page 20

• Manufacturer Part Number: EVB-EMC1043
• Description: BOARD EVALUATION FOR EMC1043
• Manufacturer: SMSC

Specifications of EVB-EMC1043

• Sensor Type: Temperature
• Sensing Range: -64°C ~ 191°C
• Interface: SMBus (2-Wire/I²C)
• Sensitivity: ±1°C
• Voltage - Supply: 3 V ~ 3.6 V
• Embedded: No
• Utilized Ic / Part: EMC1043
• Processor To Be Evaluated: EMC1043
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1039; EVB-EMC1043C; EVB-EMC1043C; Q4207578

Revision 1.44 (04-14-08)
4.3
4.4
02h
03h Read,
09h Write
ADDR
ADDR
Status
REGISTER
Config
The Status Register is a read only register and returns the operational status of the part. External diode
faults are indicated by bits 1 and 0. If either bit is set to ‘1’, then a diode fault has occurred. When a
diode fault occurs, the D1 or D2 status bit is set, but otherwise the data remains unchanged.
Bit 7 - Busy - indicates that the ADC is currently converting a temperature.
Bit 4 - HOTTER - during Hotter of Two mode, this bit indicates which of the external diode channels
is hotter. If this bit is ‘0’, then External Diode 1 is hotter or equal to External Diode 2. If this bit is ‘1’,
then External Diode 2 is hotter than External Diode 1. During normal operation, this bit will always read
a ‘0’.
Bit 1 - D2 - indicates that a diode fault has occurred on External Diode 2.
Bit 0 - D1 - indicates that a diode fault has occurred on External Diode 1.
The Configuration Register controls the basic functionality of the EMC1043. The bits are described
below:
Bit 6 - STANDBY- controls the ADC conversions and power modes of the part.
Bit 2-0 - CR<2:0> - determines the conversion rate for the temperature monitoring per
Status Register - 02h
Configuration Register (03h Read, 09h Write)
REGISTER
'0' - The device is in the run operating mode. The ADC is converting at the user-programmed
conversion rate.
'1' - (default) The device is in the standby operating mode (see
Busy
B7
-
B7
-
STANDBY
B6
Table 4.3 Configuration Register
B6
1°C Triple Temperature Sensor with Beta Compensation and Hotter of Two Zones
-
Table 4.2 Status Register
B5
DATASHEET
-
B5
HOTTER -
B4
20
-
B4
B3
-
B3
-
CR<2:0>
B2
B2
Section
D2
B1
B1
3.1).
D1
B0
B0
SMSC EMC1043
Table
45h
DEFAULT
00h
DEFAULT
Datasheet
4.4.