EMC2104 参数 Datasheet PDF下载

Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown

Datasheet

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

from the device was not prematurely stopped due to a bus contention event).

2. Set the MASK bit to clear the ALERT# pin.

4.7

SMBus Address

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.

4.8

SMBus Time-out

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.

Revision 1.74 (05-08-08)

20

SMSC EMC2104

DATASHEET