emc2104 Standard Microsystems Corp., emc2104 Datasheet - Page 20
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emc2104
Manufacturer Part Number
emc2104
Description
Emc2104 Dual Rpm-based Pwm Fan Controller With Hardware Thermal Shutdown
Manufacturer
Standard Microsystems Corp.
Datasheet
1.EMC2104.pdf
(101 pages)
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Revision 1.74 (05-08-08)
4.7
4.8
The EMC2104 will respond to the ARA in the following way if the ALERT# pin is asserted.
1. Send Slave Address and verify that full slave address was sent (i.e. the SMBus communication
2. Set the MASK bit to clear the ALERT# pin.
The EMC2104 SMBus Address is fixed at 0101_111xb.
Attempting to communicate with the EMC2104 SMBus interface with an invalid slave address or invalid
protocol will result in no response from the device and will not affect its register contents.
The EMC2104 includes an SMBus time-out feature. Following a 30ms period of inactivity on the
SMBus, the device will time-out and reset the SMBus interface.
SMBus Address
SMBus Time-out
from the device was not prematurely stopped due to a bus contention event).
DATASHEET
Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
20
SMSC EMC2104
Datasheet
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