EMC2305-1-AP-TR SMSC, EMC2305-1-AP-TR Datasheet - Page 30

• Manufacturer Part Number: EMC2305-1-AP-TR
• Description: Industrial Temperature Sensors Penta RPM-Based PWN Fan Speed Controller
• Manufacturer: SMSC

Specifications of EMC2305-1-AP-TR

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Revision 1.2 (03-22-10)
ADDR
6Dh
6Eh
6Fh
7Ah
7Bh
7Ch
7Dh
7Eh
7Fh
70h
71h
72h
73h
75h
76h
77h
78h
79h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
Fan 5 Valid TACH
TACH 4 Reading
TACH 4 Reading
TACH 5 Reading
TACH 5 Reading
Fan 5 Max Step
Fan 5 Drive Fail
Fan 5 Drive Fail
Band High Byte
Fan 5 Minimum
Configuration 2
Band Low Byte
TACH 4 Target
TACH 5 Target
TACH 5 Target
Fan 5 Spin Up
PWM 5 Divide
Configuration1
Fan 5 Setting
Configuration
REGISTER
High Byte
High Byte
High Byte
High Byte
Low Byte
Low Byte
Low Byte
Gain 5
NAME
Fan 5
Fan 5
Count
Drive
Table 5.1 EMC2305 Register Set (continued)
Holds the target tachometer setting high
Holds the tachometer reading high byte
Algorithm is disabled, allows direct user
Holds the gain terms used by the RPM-
Stores the number of Tach counts used
Holds the target tachometer setting high
Holds the tachometer reading high byte
based Fan Speed Control Algorithm for
based Fan Speed Control Algorithm for
Holds the target tachometer setting low
Sets configuration values for the RPM-
must match the target fan speed at full
Holds the tachometer reading low byte
Sets additional configuration values for
to determine how the actual fan speed
Holds the tachometer reading low byte
Sets the maximum change per update
Sets the configuration values for Spin
Sets the minimum drive value for the
Always displays the most recent fan
indicates Fan 5 is spinning properly
driver input setting for Fan 5. If the
Holds the tachometer reading that
RPM- based Fan Speed Control
Stores the divide ratio to set the
Up Routine of the Fan 5 driver
Fan 5 Control Registers
control of the fan driver.
DATASHEET
frequency for Fan 5
the Fan 5 driver
byte for Fan 4
byte for Fan 5
byte for Fan 5
Fan 5 driver
FUNCTION
scale drive
for Fan 4
for Fan 4
for Fan 5
for Fan 5
for Fan 5
Fan 5
Fan 5
30
Multiple RPM-Based PWM Fan Controller for Five Fans
DEFAULT
VALUE
(40%)
2Bh
2Ah
FFh
FFh
F8h
00h
01h
28h
19h
10h
66h
F5h
00h
00h
F8h
FFh
FFh
F8h
LOCK
SWL
SWL
SWL
SWL
SWL
SWL
SWL
SWL
No
No
No
No
No
No
No
No
No
No
SMSC EMC2305
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Datasheet
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