EMC2305-1-AP-TR SMSC, EMC2305-1-AP-TR Datasheet - Page 33

• 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

ADDR
29h
Multiple RPM-Based PWM Fan Controller for Five Fans
Datasheet
SMSC EMC2305
5.3.3
5.3.4
5.4
R/W
R/W
REGISTER
Interrupt
Enable
Fan
Bit 4 - FAN5_STALL - Indicates that Fan 5 has stalled.
Bit 3 - FAN4_STALL - Indicates that Fan 4 has stalled.
Bit 2 - FAN3_STALL - Indicates that Fan 3 has stalled.
Bit 1 - FAN2_STALL - Indicates that Fan 2 has stalled.
Bit 0 - FAN1_STALL - Indicates that Fan 1 has stalled.
Fan Spin Status - 26h
The Fan Spin Status register indicates which fan driver has failed to spin-up (see
are cleared upon a read if the error condition has been removed.
Bit 4 - FAN5_SPIN - Indicates that Fan 5 has failed to spin up.
Bit 3 - FAN4_SPIN - Indicates that Fan 4 has failed to spin up.
Bit 2 - FAN3_SPIN - Indicates that Fan 3 has failed to spin up.
Bit 1 - FAN2_SPIN - Indicates that Fan 2 has failed to spin up.
Bit 0 - FAN1_SPIN - Indicates that Fan 1 has failed to spin up.
Fan Drive Fail Status - 27h
The Fan Drive Fail Status register indicates which fan driver cannot drive to the programmed speed
even at 100% duty cycle (see
error condition has been removed.
Bit 4 - DRIVE_FAIL5 - Indicates that Fan 5 cannot reach its programmed fan speed even at 100% duty
cycle. This may be due to an aging fan or invalid programming.
Bit 3 - DRIVE_FAIL4 - Indicates that Fan 4 cannot reach its programmed fan speed even at 100% duty
cycle. This may be due to an aging fan or invalid programming.
Bit 2 - DRIVE_FAIL3 - Indicates that Fan 3 cannot reach its programmed fan speed even at 100% duty
cycle. This may be due to an aging fan or invalid programming.
Bit 1 - DRIVE_FAIL2 - Indicates that Fan 2 cannot reach its programmed fan speed even at 100% duty
cycle. This may be due to an aging fan or invalid programming.
Bit 0 - DRIVE_FAIL1 - Indicates that Fan 1 cannot reach its programmed fan speed even at 100% duty
cycle. This may be due to an aging fan or invalid programming.
The Fan Interrupt Enable controls the masking for each Fan channel. When a channel is enabled, it
will cause the ALERT# pin to be asserted when an error condition is detected.
Bit 4 - FAN5_INT_EN - Allows Fan 5 to assert the ALERT# pin if an error condition is detected.
Bit 3 - FAN4_INT_EN - Allows Fan 4 to assert the ALERT# pin if an error condition is detected.
Fan Interrupt Enable Register
B7
-
Table 5.4 Fan Interrupt Enable Register
B6
-
Section 4.4.2
B5
DATASHEET
-
33
INT_EN
FAN5_
and
B4
Section
INT_EN
FAN4_
B3
5.12). All bits are cleared upon a read if the
INT_EN
FAN3_
B2
INT_EN
FAN2_
Revision 1.2 (03-22-10)
B1
Section
4.6). All bits
INT_EN
FAN1_
B0
DEFAULT
00h