ASC7611 ETC2 [List of Unclassifed Manufacturers], ASC7611 Datasheet - Page 30

• Manufacturer Part Number: ASC7611
• Description: HARDWARE MONITOR WITH INTEGRATED FAN CONTROL
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Register
Address
This register specifies the minimum duty cycle that the PWM will output when the measured temperature reaches the
Temperature LIMIT register setting.
This register becomes Read-only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write
to this register shall have no effect.
© Andigilog, Inc. 2006
Register 64-66h: Minimum PWM Duty Cycle
64h
65h
66h
Read/
Write
R/W
R/W
R/W
Fan 1 PWM
Minimum
Fan 2 PWM
Minimum
Fan 3 PWM
Minimum
Register
Table 15 PWM Output Below Limit Depending on Value of Off/Min
Name
At 0% duty below LIMIT
At Min PWM Duty below LIMIT
(MSB)
Table 16 Minimum PWM Duty Cycle Setting
Bit 7
Table 14 Spike Smoothing for ZN1 to ZN3
PWM Action
7
7
7
Minimum PWM %
~50% (Default)
Spike Smoothing
17.6 seconds
11.8 seconds
Bit 6
~25%
~75%
100%
7.0 seconds
4.4 seconds
3.0 seconds
1.6 seconds
0.8 seconds
35 seconds
0%
6
6
6
Time
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Bit 5
5
5
5
- 30 -
1000
0000
0100
1100
1111
Bit 4
Register Value
Binary
4
4
4
ZNn-[2:0]
0000
0000
0000
0000
1111
000
001
010
011
100
101
110
111
Off/Min Bit
Bit 3
3
3
3
0
1
Hex
C0
FF
00
40
80
Bit 2
2
2
2
Bit 1
1
1
1
October 2006 - 70A05007
(LSB)
Bit 0
0
0
0
aSC7611
Default
Value
80
80
80
Lock
X
X
X