EMC1701 Datasheet, PDF (29/54 Pages) SMSC Corporation – High-Side Current-Sense and Internal 1°C Temperature Monitor

High-Side Current-Sense and Internal 1°C Temperature Monitor
Datasheet
Table 5.1 Register Set in Hexadecimal Order (continued)
REGISTER
ADDRESS R/W
REGISTER NAME
FUNCTION
DEFAULT
VALUE
22h
R/W
Consecutive Alert Controls the number of out-of-limit
70h
conditions that must occur before
an interrupt is asserted
29h
R
Internal Diode Data Stores the fractional data for the
00h
Low Byte
Internal Diode (mirrored at register
39h)
34h
R-C
Status
Stores the status bits for the
00h
measured temperature channels,
Current Sense circuitry, and Peak
Detector circuitry
35h
R-C
High Limit Status
Status bits for the High Limits
00h
36h
R-C
Low Limit Status
Status bits for the Low Limits
00h
37h
R-C
Crit Limit Status
Status bits for the Tcrit and Vcrit
00h
Limits
38h
R
Internal Diode High
Stores the integer data for the
00h
Byte
Internal Diode
39h
R
Internal Diode Low Stores the fractional data for the
00h
Byte
Internal Diode
Current Sense Control and Measurement
50h
R/W
Voltage Sampling
Controls voltage sampling
80h
Configuration
51h
R/W
Current Sense
Controls the current sensing
03h
Sampling
sampling and update times
Configuration
52h
R/W
Peak Detection
Controls the peak detection
00h
Config
configuration
54h
R
Sense Voltage High
Stores the voltage measured
00h
Byte
across R_SENSE
55h
R
Sense Voltage Low
00h
Byte
58h
R
Source Voltage High Stores voltage measured on the
00h
Byte
source side of R_SENSE
59h
R
Source Voltage Low
00h
Byte
5Bh
R
Power Ratio High
Stores the power ratio value
00h
Byte
5Ch
R
Power Ratio Low
00h
Byte
Current Sense and Source Voltage Limits
60h
R/W
Sense Voltage High
Stores the high limit for V_SENSE
7Fh
Limit
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SMSC EMC1701
29
DATASHEET
Revision 1.2 (09-27-10)