EMC6D100-DK SMSC [SMSC Corporation], EMC6D100-DK Datasheet - Page 64

• Manufacturer Part Number: EMC6D100-DK
• Description: ENVIRONMENTAL MONITORING AND CONTROL DEVICE WITH AUTOMATIC FAN CAPABILITY
• Manufacturer: SMSC [SMSC Corporation]

REGISTER
ADDRESS
8.32
SMSC EMC6D100/EMC6D101
80h
Bit[2]
Reserved
Bit[3]
TRDY: Temperature Reading Ready. This bit indicates that the temperature reading registers have valid
values. This bit is used after writing the start bit to ‘1’. 0= not valid, 1=valid.
Bit[4]
SUREN: Spin-up reduction enable. This bit enables the reduction of the spin-up time based on feedback
from all fan tachometers associated with each PWM. 0=disable, 1=enable (default)
Bit[6]
Fan_tach test mode
Bit[7]
Initialization.
Register 80h: Fan Temp Interrupt Enable Register
These registers become read only when the Lock bit is set. Any further attempts to write to these registers
shall have no effect.
This register is used to enable the fan events and the ambient temperature to set the corresponding status
bits in the interrupt status registers. It also contains the FAN enable bit to enable fan events to the INT#
pin and the TEMP enable bit that enables temperature events to the INT# pin.
This register contains the following bits:
Bit[0]
Fan Interrupt Enable
Bit[1]
Fan 1 Event Enable
Bit[2]
Fan 2 Event Enable
Bit[3]
Fan 3 Event Enable
WRITE
READ/
R/W
REGISTER
Fan Temp
Interrupt
Enable
NAME
(MSB)
BIT 7
RES
DATASHEET
BIT 6
AMB
Page 64
TEMP
BIT 5
FAN4
BIT 4
FAN3
BIT 3
Environmental Monitoring and Control Device
FAN2
BIT 2
FAN1
BIT 1
(LSB)
BIT 0
FAN
Rev. 09-09-04
DEFAULT
Datasheet
VALUE
5Eh