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PDF ( 数据手册 , 数据表 ) JMS551

零件编号 JMS551
描述 SuperSpeed USB to 2 ports SATA II 3.0G Bridge
制造商 JMicron
LOGO JMicron LOGO 


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JMS551 数据手册, 描述, 功能
JMicron/JMS551
JMS551
SuperSpeed USB to 2 ports
SATA II 3.0G Bridge
Datasheet
Revision 1.0.3
Revision1.0.3
© JMicron 2010. All rights reserved.
Page 1
January 2010
Copying prohibited.







JMS551 pdf, 数据表
JMicron/JMS551
Revision1.0.3
© JMicron 2010. All rights reserved.
Page 8
January 2010
Copying prohibited.







JMS551 equivalent, schematic
JMicron/JMS551
Signal Name
GPIO[12]
GPIO[13]
GPIO[14]
GPIO[15]
GPIO[23:16]
GPIO[29:24]
Pin No.
8
7
6
5
77, 78, 79,
88, 89, 90,
4, 3
69, 70, 71,
72, 73, 74
Type
DIO
DIO
DIO
DIO
DIO
DIO
Description
Indictor LED(HDD access)
(1) Indictor LED output for HDD access.
(2) Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
OUTPUT mode is recommended.
PWM / GPIO[13]
(1) PWM 5 output.
(2) Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
OUTPUT mode is recommended.
PWM / GPIO[14]
(1) PWM 6 output.
(2) Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
OUTPUT mode is recommended.
PWM / GPIO[15]
(1) PWM 7 output.
(2) Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
OUTPUT mode is recommended.
General purposes I/O
Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
General purposes I/O
Can be configured by customer firmware. Don’t connect to VCC or
Ground directly.
LED Indicator
By default, GPIO[5] is used as USB2.0/USB3.0 active indicator. And GPIO[12] is used as HDD access
indicator. The function of GPIO[5] is always ON/OFF and the function of GPIO[12] is fading. If user
has different application for LED function, please contact JMicron’s AE before PCB layout.
Revision1.0.3
© JMicron 2010. All rights reserved.
Page 16
January 2010
Copying prohibited.










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