RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
Table 7.1 EMC2113 Register Set (continued)
DEFAULT
REGISTER
NAME
ADDR
R/W
FUNCTION
VALUE
LOCK
PAGE
Diode Configuration
11h
12h
R/W
R/W
External Diode 1
Ideality Register
Stores the Ideality Factor used for
External Diode 1
12h
12h
SWL
SWL
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Page 46
Page 48
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Page 49
External Diode 2
Ideality Register
Stores the Ideality factor used for
External Diode 2
External Diode 3
Ideality Register
Stores the Ideality factor used for
External Diode 3
13h
14h
R/W
R/W
12h
10h
SWL
SWL
External Diode 1
Beta Configuration
Configures the beta compensation
settings for External Diode 1
15h
17h
R/W
R/W
External Diode 2
BetaConfiguration
Configures the beta compensation
settings for External Diode 2
10h
07h
SWL
SWL
External Diode
REC
Configuration
Configures the Resistance Error
Correction functionality for all
external diodes
Critical Temperature Limit Registers
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 50
Page 50
Page 50
Page 50
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
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
No
SWL
SWL
No
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Page 51
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Page 54
temperature channel tcrit limits
R/W
R/W
R
Configures the Thermal / Critical
Shutdown masking options
Controls the conversion rate for
monitoring of all channels
Stores the status bits for temperature
channels
R-C
R-C
R-C
R-C
R/W
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
Revision 1.2 (10-08-09)
SMSC EMC2113
DATA3S8HEET
SMSC [ SMSC CORPORATION ]
