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EMC2104 参数 Datasheet PDF下载

EMC2104图片预览
型号: EMC2104
PDF下载: 下载PDF文件 查看货源
内容描述: 双基于RPM的PWM风扇控制器硬件热关断 [Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown]
分类和应用: 风扇控制器
文件页数/大小: 101 页 / 1474 K
品牌: SMSC [ SMSC CORPORATION ]
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Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown  
Datasheet  
Table 6.1 EMC2104 Register Set (continued)  
REGISTER  
NAME  
DEFAULT  
VALUE  
ADDR  
R/W  
FUNCTION  
LOCK  
PAGE  
Fan 1 Control Registers  
Always displays the most recent fan  
driver input setting for Fan 1. If the RPM  
based Fan Speed Control Algorithm is  
disabled, allows direct user control of  
the fan driver.  
40h  
R/W  
Fan 1 Setting  
PWM 1 Divide  
00h  
No  
Page 64  
Stores the divide ratio to set the  
frequency for Fan 1  
41h  
42h  
43h  
45h  
R/W  
R/W  
R/W  
R/W  
01h  
2Bh  
38h  
2Ah  
No  
No  
Page 64  
Page 65  
Page 67  
Page 69  
Sets configuration values for the RPM  
based Fan Speed Control Algorithm for  
the Fan 1 driver  
Fan 1  
Configuration 1  
Fan 1  
Configuration 2  
Sets additional configuration values for  
the Fan 1 driver  
SWL  
SWL  
Holds the gain terms used by the RPM  
based Fan Speed Control Algorithm for  
the Fan 1 driver  
Gain 1  
Fan 1 Spin Up  
Configuration  
Sets the configuration values for Spin  
Up Routine of the Fan 1 driver  
46h  
47h  
48h  
R/W  
R/W  
R/W  
19h  
10h  
SWL  
SWL  
SWL  
Page 69  
Page 71  
Page 72  
Sets the maximum change per update  
for the Fan 1 driver  
Fan 1 Step  
Fan 1 Minimum  
Drive  
Sets the minimum drive value for the  
Fan 1 driver  
66h  
(40%)  
Holds the minimum tachometer reading  
that indicates the fan is spinning  
properly  
Fan 1 Valid TACH  
Count  
49h  
R/W  
F5h  
SWL  
Page 72  
Page 73  
Fan 1 Drive Fail  
Band Low Byte  
Stores the number of Tach counts used  
to determine how the actual fan speed  
must match the target fan speed at full  
scale drive  
4Ah  
4Bh  
4Ch  
4Dh  
4Eh  
4Fh  
R/W  
R/W  
R/W  
R/W  
R
00h  
00h  
F8h  
FFh  
FFh  
F8h  
SWL  
SWL  
No  
Fan 1 Drive Fail  
Band High Byte  
TACH 1 Target  
Low Byte  
Holds the target tachometer reading low  
byte Fan 1  
Page 73  
Page 73  
Page 74  
Page 74  
TACH 1 Target  
High Byte  
Holds the target tachometer reading  
high byte for Fan 1  
No  
TACH 1 Reading  
High Byte  
Holds the tachometer reading high byte  
for Fan 1  
No  
TACH 1 Reading  
Low Byte  
Holds the tachometer reading low byte  
for Fan 1  
R
No  
Look Up Table 1 (LUT1)  
LUT 1  
Configuration  
Stores and controls the configuration for  
LUT 1  
50h  
51h  
R/W  
R/W  
00h  
No  
Page 75  
Page 76  
Stores the lowest programmed drive  
setting for LUT 1  
LUT  
Lock 1  
LUT 1 Drive 1  
FBh  
SMSC EMC2104  
Revision 1.74 (05-08-08)  
DATA4S1HEET