Multiple RPM-Based PWM Fan Controller for Five Fans
Datasheet
Table 5.32 FAN_SPD Pin Configuration
FAN_SPD [2:0]
1
FAN SPEED
2
0
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
0% Drive
30% Drive
50% Drive
75% Drive
100% Drive
5.21
Product ID Register
Table 5.33 Product ID Register
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
FDh
R
Product ID
0
0
1
1
0
1
0
0
34h
The Product ID Register contains a unique 8-bit word that identifies the product.
5.22
Manufacturer ID Register
Table 5.34 Manufacturer ID Register
ADDR
FEh
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
5Dh
R
Manufacturer ID
0
1
0
1
1
1
0
1
The Manufacturer ID Register contains an 8-bit word that identifies SMSC.
5.23
Revision Register
Table 5.35 Revision Register
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
FFh
R
Revision
1
0
0
0
0
0
0
0
80h
The Revision Register contains an 8-bit word that identifies the die revision.
SMSC EMC2305
Revision 1.1 (10-12-09)
DATA4S9HEET
SMSC [ SMSC CORPORATION ]
