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EMC2104-BP-TR 参数 Datasheet PDF下载

EMC2104-BP-TR图片预览
型号: EMC2104-BP-TR
PDF下载: 下载PDF文件 查看货源
内容描述: [Switching Controller]
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  
„
‘1’ - the FAN_STALL 2 or DRIVE_FAIL2 bits will assert the ALERT# pin if set.  
Bit 1 - SPIN_INT_EN1 - Allows the FAN_SPIN1 bit to assert the ALERT# pin.  
„
„
‘0’ (default) - the FAN_SPIN1 bit will not assert the ALERT# pin though it will still update the Status  
Register normally.  
‘1’ - the FAN_SPIN1 bit will assert the ALERT# pin.  
Bit 0 - STALL_INT_EN1 - Allows the FAN_STALL1 bit or DRIVE_FAIL1 bit to assert the ALERT# pin.  
„
‘0’ (default) - the FAN_STALL1 bit or DRIVE_FAIL1 bit will not assert the ALERT# pin though will  
still update the Status Register normally.  
„
‘1’ - the FAN_STALL1 or DRIVE_FAIL1 bit will assert the ALERT# pin if set.  
6.17  
PWM Configuration Register  
Table 6.22 PWM Configuration Register  
ADDR  
2Ah  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
PWM  
Config  
POLA  
RITY2  
POLA  
RITY1  
R/W  
-
-
-
-
-
-
00h  
The PWM Config Register controls the output type and polarity of all PWM outputs.  
Bit 1 - POLARITY2 - Determines the polarity of PWM2 (if enabled).  
Bit 0 - POLARITY1 - Determines the polarity of PWM1 (if enabled).  
6.18  
PWM Base Frequency Register  
Table 6.23 PWM Base Frequency Register  
ADDR  
R/W  
REGISTER  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
B0  
DEFAULT  
PWM_ PWM_ PWM_ PWM_  
PWM Base  
Frequency  
2Bh  
R/W  
-
-
-
-
BASE  
BASE  
2_0  
BASE  
1_1  
BASE  
1_0  
FFh  
2_1  
The PWM Base Frequency Register determines the base frequency that is used with the PWM Divide  
register to determine the final PWM frequency. Each PWM driver uses the same divide ratio as set by  
the PWM Divide Register.  
Bits 3-2 - PWM_BASE2[1:0] - Determines the base frequency of the PWM2 driver (PWM2 / GPIO4  
pin).  
Bits 1-0 - PWM_BASE1[1:0] - Determines the base frequency of the PWM1 driver (PWM1).  
Revision 1.74 (05-08-08)  
SMSC EMC2104  
DATA6S2HEET