EMC6D103 Datasheet, PDF (50/89 Pages) SMSC Corporation – FAN CONTROL DEVICE WITH HIGH FREQUENCY PWM

Reg
Addr
3Eh
3Fh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
4Ah
4Bh
4Ch
4Dh
4Eh
4Fh
50h
51h
52h
53h
54h
55h
56h
57h
58h
59h
5Ah
5Bh
Read
/Write
R
R
R/W
Note 8.2
R-C
Note 8.3
R-C
Note 8.3
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reg Name
Company ID
Version / Stepping
Ready/Lock/Start
Interrupt Status Register 1
Interrupt Status Register 2
VID0-4
2.5V Low Limit
2.5V High Limit
Vccp Low Limit
Vccp High Limit
VCC Low Limit
VCC High Limit
5V Low Limit
5V High Limit
12V Low Limit
12V High Limit
Remote Diode 1 Low Temp
Remote Diode 1 High Temp
Internal Low Temp
Internal High Temp
Remote Diode 2 Low Temp
Remote Diode 2 High Temp
Tach1 Minimum LSB
Tach1 Minimum MSB
Tach2 Minimum LSB
Tach2 Minimum MSB
Tach3 Minimum LSB
Tach3 Minimum MSB
Tach4 Minimum LSB
Tach4 Minimum MSB
Table 8.1 Register Summary (continued)
Bit 7
MSb
7
VER3
RES
Bit 6
6
VER2
RES
Bit 5
5
VER1
RES
Bit 4
4
VER0
RES
Bit 3
Bit 2
3
STP3
OVRID
2
STP2
READY
Bit 1
1
STP1
LOCK
INT2
D2
AMB
D1
5V
VCC
Vccp
Bit 0
LSb
0
STP0
START
2.5V
Default
Value
5Ch
6Ah
00h
00h
Lock Start
No
No
No
No
Yes
No
Note 8.2
No
No
ERR2 ERR1 TACH4 TACH3 TACH2 TACH1 RES
12V
00h
No
No
RES
RES
RES
VID4 VID3 VID2
VID1
VID0
N/A
7
6
5
4
3
2
1
0
00h
7
6
5
4
3
2
1
0
FFh
7
6
5
4
3
2
1
0
00h
7
6
5
4
3
2
1
0
FFh
7
6
5
4
3
2
1
0
00h
7
6
5
4
3
2
1
0
FFh
7
6
5
4
3
2
1
0
00h
7
6
5
4
3
2
1
0
FFh
7
6
5
4
3
2
1
0
00h
7
6
5
4
3
2
1
0
FFh
7
6
5
4
3
2
1
0
81h
7
6
5
4
3
2
1
0
7Fh
7
6
5
4
3
2
1
0
81h
7
6
5
4
3
2
1
0
7Fh
7
6
5
4
3
2
1
0
81h
7
6
5
4
3
2
1
0
7Fh
7
6
5
4
3
2
1
0
FFh
15
14
13
12
11
10
9
8
FFh
7
6
5
4
3
2
1
0
FFh
15
14
13
12
11
10
9
8
FFh
7
6
5
4
3
2
1
0
FFh
15
14
13
12
11
10
9
8
FFh
7
6
5
4
3
2
1
0
FFh
15
14
13
12
11
10
9
8
FFh
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No