High-Side Current-Sense and Internal 1°C Temperature Monitor
Datasheet
Chapter 5 Register Description
The registers shown in Table 5.1 are accessible through the SMBus. An entry of ‘-’ indicates that the
bit is not used and will always read ‘0’.
Table 5.1 Register Set in Hexadecimal Order
DEFAULT
REGISTER
ADDRESS
R/W
REGISTER NAME
FUNCTION
VALUE
PAGE
00h
02h
03h
04h
05h
06h
09h
0Ah
0Bh
0Ch
R
Internal Diode Data
High Byte
Stores the integer data for the
Internal Diode (mirrored at address
38h)
00h
Page 31
R
Status
Stores the status bits for the
Internal Diode (mirrored at address
34h)
00h
00h
Page 31
Page 32
Page 33
Page 33
Page 33
Page 32
Page 33
Page 33
Page 33
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Configuration
Conversion Rate
Controls the general operation of
the device (mirrored at address
09h)
Controls the conversion rate for
updating measurement data
(mirrored at address 0Ah)
06h
(4/sec)
Internal Diode High
Limit
Stores the 8-bit high limit for the
Internal Diode (mirrored at address
0Bh)
55h
(85°C)
Internal Diode Low
Limit
Stores the 8-bit low limit for the
Internal Diode (mirrored at address
0Ch)
80h
(-128°C)
Configuration
Controls the general operation of
the device (mirrored at address
03h)
00h
Conversion Rate
Controls the conversion rate for
updating measurement data
(mirrored at address 04h)
06h
(4/sec)
Internal Diode High
Limit
Stores the 8-bit high limit for the
Internal Diode (mirrored at address
05h)
55h
(85°C)
Internal Diode Low
Limit
Stores the 8-bit low limit for the
Internal Diode (mirrored at address
06h)
80h
(-128°C)
0Fh
1Fh
20h
21h
W
One-Shot
A write to this register initiates a
one-shot update.
00h
00h
Page 34
Page 34
Page 34
Page 34
R/W
R/W
R/W
Channel Mask
Register
Controls the masking of individual
channels
Internal Diode Tcrit
Limit
Stores the 8-bit critical temperature
limit for the Internal Diode
64h
(100°C)
Tcrit Hysteresis
Stores the 8-bit hysteresis value
that applies to all THERM limits
0Ah
(10°C)
Revision 1.2 (09-27-10)
SMSC EMC1701
DATA2S8HEET
SMSC [ SMSC CORPORATION ]
