EMC6D103S-CZC-TR SMSC, EMC6D103S-CZC-TR Datasheet - Page 72

• Manufacturer Part Number: EMC6D103S-CZC-TR
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC6D103S-CZC-TR

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

Revision 0.3 (03-01-07)
8.2.20
Register
Address
67h
68h
69h
Read/
Write
R/W
R/W
R/W
Registers 67-69h: Zone Low Temperature Limit
These registers become read only when the Lock bit is set. Any further attempts to write to these
registers shall have no effect.
These are the temperature limits for the individual zones. When the current temperature equals this
limit, the fan will be turned on if it is not already. When the temperature exceeds this limit, the fan
speed will be increased according to the auto fan algorithm based on the setting in the Zone x Range
/ PWMx Frequency register. Default = 90 ° C=5Ah
Zone 1 Low Temp Limit
Zone 2 Low Temp Limit
Zone 3 Low Temp Limit
MINIMUM PWM
Table 8.36 Registers 67-69h: Zone Low Temperature Limit
Register Name
DUTY
100%
Table 8.37 Temperature Limit vs. Register Setting
25%
50%
0%
-127 ° c
LIMIT
-50 ° c
.
.
.
.
.
.
.
.
.
0 ° c
.
.
.
.
.
.
.
.
.
Table 8.35 PWM Duty vs. Register Setting
Fan Control Device with High Frequency PWM Support and Hardware Monitoring Features
VALUE (DECIMAL)
DATASHEET
(MSb)
LIMIT (DEC)
Bit 7
7
7
7
-127
-50
128
255
64
0
72
.
.
.
.
.
.
.
.
.
0
.
.
.
.
.
.
.
.
.
Bit 6
6
6
6
Bit 5
5
5
5
LIMIT (HEX)
Bit 4
VALUE (HEX)
4
4
4
CEh
81h
00h
.
.
.
.
.
.
.
.
.
FFh
00h
40h
80h
Bit 3
.
.
.
.
.
.
.
.
.
3
3
3
Bit 2
2
2
2
Bit 1
1
1
1
SMSC EMC6D103
(LSb)
Bit 0
0
0
0
Datasheet
Default
Value
5Ah
5Ah
5Ah