RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
Table 6.1 EMC2103 Register Set (continued)
REGISTER
NAME
DEFAULT
VALUE
ADDR
R/W
FUNCTION
LOCK
PAGE
Diode Configuration
11h
R/W
R/W
External Diode 1
Ideality Register
Stores the Ideality Factor used for
External Diode 1
12h
12h
SWL
SWL
Page 44
Page 44
12h **
External Diode 2
Ideality Register **
Stores the Ideality factor used for
External Diode 2 and External Diode
3
14h
R/W
R/W
External Diode 1
Beta Configuration
Configures the beta compensation
settings for External Diode 1
10h
10h
SWL
SWL
Page 45
Page 45
15h **
External Diode 2
BetaConfiguration
**
Configures the beta compensation
settings for External Diode 2
17h
R/W
External Diode
REC
Configuration
Configures the Resistance Error
Correction functionality for all
external diodes
07h
SWL
Page 46
19h
1Ah **
1Bh **
1Dh
R/W
once
External Diode 1
Tcrit Limit
Stores the critical temperature limit
for External Diode 1
64h
(100°C)
Write
Once
Page 47
Page 47
Page 47
Page 47
R/W
once
External Diode 2
Tcrit Limit **
Stores the critical temperature limit
for External Diode 2
64h
(100°C)
Write
Once
R/W
once
External Diode 3
Tcrit Limit **
Stores the critical temperature limit
for External Diode 3
64h
(100°C)
Write
Once
R/W
once
Internal Diode
Tcrit Limit
Stores the critical temperature limit
for the Internal Diode
64h
(100°C)
Write
Once
Configuration and control
1Fh
20h
21h
23h
24h
25h
26h
27h
28h
29h
R
Tcrit Status
Configuration
Configuration 2
Interrupt Status
High Limit Status
Low Limit Status
Diode Fault
Stores the status bits for all
00h
00h
0Eh
00h
00h
00h
00h
00h
00h
00h
No
SWL
SWL
No
Page 50
Page 47
Page 48
Page 49
Page 50
Page 50
Page 50
Page 51
Page 51
Page 52
temperature channel tcrit limits
R/W
R/W
R-C
R-C
R-C
R-C
R-C
R/W
R/W
Configures the Thermal / Critical
Shutdown masking options
Controls the conversion rate for
monitoring of all channels
Stores the status bits for temperature
channels
Stores the status bits for all
temperature channel high limits
No
Stores the status bits for all
temperature channel low limits
No
Stores the status bits for all
temperature channel diode faults
No
Fan Status
Stores the status bits for the RPM
based Fan Speed Control Algorithm
No
Interrupt Enable
Register
Controls the masking of interrupts on
all temperature channels
No
Fan Interrupt
Enable Register
Controls the masking of interrupts for
the Fan Driver
No
Revision 0.85 (01-29-08)
SMSC EMC2103
DATA3S6HEET
SMSC [ SMSC CORPORATION ]
