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參數(shù)資料
| 型號： | ASC7611 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | HARDWARE MONITOR WITH INTEGRATED FAN CONTROL |
| 中文描述： | 五金顯示器整合了風(fēng)扇控制 |
| 文件頁數(shù)： | 32/40頁 |
| 文件大小： | 505K |
| 代理商： | ASC7611 |
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P
P
- 32 -
Andigilog, Inc. 2006
www.andigilog.com
October 2006 - 70A05007
aSC7611
Register 6A-6Ch: Temperature Limit
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock
6Ah
R/W
Zone 1 Temp
Absolute Limit
7
6
5
4
3
2
1
0
64
X
6Bh
R/W
Zone 2 Temp
Absolute Limit
Zone 3 Temp
Absolute Limit
7
6
5
4
3
2
1
0
64
X
6Ch
R/W
7
6
5
4
3
2
1
0
64
X
In the Auto Fan mode, if a zone exceeds the temperature set in the Absolute Temperature Limit register, all of the PWM
outputs will increase its duty cycle to 100%. This is a safety feature that attempts to cool the system if there is a potentially
catastrophic thermal event. If set to 80h (-128
°
C), the feature is disabled. Default = 100 C = 64h. The PWM will remain at
100% until the assigned zone temperature falls below the Absolute Temp Limit for that zone by an amount equal to the
hysteresis value for that zone.
These registers become read-only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write
to these registers shall have no effect.
Temperature
Absolute Limit
(2’s Complement)
>127
°
C
+127
°
C
+125
°
C
0111
0111
0111
0110
0011
0001
0000
1100
1000
1000
1111
1111
1101
0100
0010
1001
0000
1110
0001
0000
+100
°
C (default)
+50
°
C
+25
°
C
0
°
C
-50
°
C
-127
°
C
-128
°
C (Disable)
Table 18 Absolute Temperature Limit Register -
8-Bit Two’s Complement
Register 6D-6Eh: Thermal Zone Hysteresis
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock
6Dh
R/W
Zone 1 and
Zone 2
Hysteresis
H1-3
H1-2
H1-1
H1-0
H2-3
H2-2
H2-1
H2-0
44
X
6Eh
R/W
Zone 3
Hysteresis
H3-3
H3-2
H3-1
H3-0
RES
RES
RES
RES
40
X
If the temperature is above Fan Temp Limit, then drops below Fan Temp Limit, the following will occur:
The fan will remain on, at Fan PWM Minimum, until the temperature goes a certain amount below Fan Temp Limit.
The Hysteresis registers control this amount. See below table for details, all values from 0
°
C to 15
°
C are possible.
This register becomes read-only when the Ready/Lock/Start/Override register Lock bit is set. Any further attempts to write to
these registers shall have no effect.
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