Environmental Monitoring and Control Device
Datasheet
Chapter 8 Register Set
Definition for the Lock and Start columns:
Yes = Register is made read-only when the related bit is set;
No = Register is not made read-only when the related bit is set.
Register Read/
Address Write
Bit 7
Bit 0 Default
(LSb) Value
Register Name
Abbr.
Lock Start
No No
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
(MSb)
10h
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
30h
31h
32h
3Eh
3Fh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
R/W SMSC Test Register
R/W Offset Register 2
R/W Offset Register 1
SMSC
OF2R
OF1R
V25R
VCPR
VCCR
V50R
V12R
TRD1
TAMR
TRD2
FTL1
7
7
6
6
5
5
4
4
3
3
2
2
1
1
1
1
1
1
1
1
1
1
1
1
9
1
9
1
9
1
9
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
8
0
8
0
8
0
8
0
0
0
0
00h
00h
00h
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
5Ch
60h
00h
00h
00h
N/A
00h
FFh
00h
FFh
00h
FFh
Yes Yes
Yes Yes
7
6
5
4
3
2
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
2.5V
7
6
5
4
3
2
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
Vccp
7
6
5
4
3
2
VCC
7
6
5
4
3
2
5V
7
6
5
4
3
2
12V
7
6
5
4
3
2
Processor (Zone1) Temp
Internal (Zone2) Temp
Remote (Zone3) Temp
Tach1 LSB
Tach1 MSB
Tach2 LSB
Tach2 MSB
Tach3 LSB
Tach3 MSB
Tach4 LSB
Tach4 MSB
7
6
5
4
3
2
7
6
5
4
3
2
7
6
5
4
3
2
7
6
5
4
3
2
FTM1
FTL2
15
7
14
6
13
5
12
4
11
3
10
2
FTM2
FTL3
15
7
14
6
13
5
12
4
11
3
10
2
FTM3
FTL4
15
7
14
6
13
5
12
4
11
3
10
2
FTM4
FCD1
FCD2
FCD3
COID
15
7
14
6
13
5
12
4
11
3
10
2
R/W1 Fan1 Current PWM Duty
R/W1 Fan2 Current PWM Duty
R/W1 Fan3 Current PWM Duty
Yes1 No1
Yes1 No1
Yes1 No1
7
6
5
4
3
2
7
6
5
4
3
2
R
R
Company ID
7
6
5
4
3
2
No
No
No
No
Version / Stepping
STNV VER3 VER2 VER1 VER0 STP3 STP2 STP1 STP0
R/W2 Ready/Lock/Start
RLST
R-C3 Interrupt Status Register 1 INT1 INT23 ZN3 ZN2 ZN1
Yes2 No
RES
RES
RES
RES
OVRID
READY
LOCK
START
5V
VCC Vccp 2.5V
No
No
No
No
No
No
R-C3 Interrupt Status Register 2 INT2 ERR2 ERR1 FAN4 FAN3 FAN2 FAN1 RES 12V
R
VID0-4
VIDR RES RES RES VID4
VID3 VID2 VID1 VID0
R/W 2.5V Low Limit
R/W 2.5V High Limit
R/W Vccp Low Limit
R/W Vccp High Limit
R/W VCC Low Limit
R/W VCC High Limit
V25L
V25H
VCPL
VCPH
VCCL
VCCH
7
7
7
7
7
7
6
6
6
6
6
6
5
5
5
5
5
5
4
4
4
4
4
4
3
3
3
3
3
3
2
2
2
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
SMSC EMC6D100/EMC6D101
Page 37
Rev. 09-09-04
DATASHEET
SMSC [ SMSC CORPORATION ]
