EMC1702 Datasheet, PDF (31/57 Pages) SMSC Corporation – High-Side Current-Sense and Dual 1°C Temperature Monitor

High-Side Current-Sense and Dual 1°C Temperature Monitor
Datasheet
Table 5.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS
37h
38h
39h
3Ah
3Bh
40h
50h
51h
52h
54h
55h
58h
59h
5Bh
5Ch
60h
61h
64h
65h
R/W
REGISTER NAME
FUNCTION
DEFAULT
VALUE
R-C
Crit Limit Status
Status bits for the Tcrit and Vcrit
00h
Limits
R
Internal Diode High
Stores the integer data for the
00h
Byte
Internal Diode
R
Internal Diode Low Stores the fractional data for the
00h
Byte
Internal Diode
R
External Diode 1 Stores the integer data for External
00h
High Byte
Diode 1
R
External Diode 1 Low
Stores the fractional data for
00h
Byte
External Diode 1
R/W
Averaging Control
Controls the digital averaging
00h
setting for the all external diode
channels
Current Sense Control and Measurement
R/W
Voltage Sampling
Controls voltage sampling
80h
Configuration
R/W
Current Sense
Controls the current sensing
03h
Sampling
sampling and update times
Configuration
R/W
Peak Detection
Controls the peak detection
00h
Config
configuration
R
Sense Voltage High
Stores the voltage measured
00h
Byte
across R_SENSE
R
Sense Voltage Low
00h
Byte
R
Source Voltage High Stores voltage measured on the
00h
Byte
source side of R_SENSE
R
Source Voltage Low
00h
Byte
R
Power Ratio High
Stores the power ratio value
00h
Byte
R
Power Ratio Low
00h
Byte
Current Sense and Source Voltage Limits
R/W
Sense Voltage High
Stores the high limit for V_SENSE
7Fh
Limit
R/W
Sense Voltage Low Stores the low or negative limit for
80h
Limit
the V_SENSE voltage
R/W Source Voltage High Stores the high limit for the voltage
FFh
Limit
on the source side of R_SENSE
R/W Source Voltage Low Stores the low limit for the voltage
00h
Limit
on the source side of R_SENSE
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SMSC EMC1702
31
DATASHEET
Revision 1.2 (09-27-10)