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About Corresponded UART Interface

S6AL211A94, ASSP 4ch LED Driver IC for Intelligent Lighting Hardware Manual, Doc. No. 002-08545 Rev. *B

14

2.3.2 Linear Curve

Figure 4. Formula of Linear Dimming Curve

X(n)

=

・

100

255

n

Figure 5. Linear Dimming Curve

(%)

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Summary of Contents for S6AL211A94

Page 1: ...S6AL211A94 ASSP 4 ch LED Driver IC for Intelligent Lighting Hardware Manual Doc No 002 08545 Rev B Cypress Semiconductor 198 Champion Court San Jose CA 95134 1709 www cypress com ...

Page 2: ...y liability arising out of any security breach such as unauthorized access to or use of a Cypress product In addition the products described in these materials may contain design defects or errors known as errata which may cause the product to deviate from published specifications To the extent permitted by applicable law Cypress reserves the right to make changes to this document without further ...

Page 3: ...ies Purpose of this manual and intended readers This manual explains the functions and operations of this product and describes how it is used The manual is intended for engineers engaged in the actual development of products using this product Note This manual explains the configuration and operation but does not cover the specifics of each device in the series Users should refer to the respectiv...

Page 4: ...ded UART Interface 6 2 1 Terminal connection 7 2 2 Description of Functions 9 2 2 1 Data Format and Timing 9 2 2 2 Control Command 10 2 2 3 Memory Map 11 2 3 Dimming Curve 13 2 3 1 Logarithm Curve 13 2 3 2 Linear Curve 14 2 4 Trigger Input Dimming 15 2 4 1 Trigger Signal 15 2 4 2 Dimming Control 15 Revision History 17 Document Revision History 17 ...

Page 5: ...r Intelligent Lighting Hardware Manual Doc No 002 08545 Rev B 5 1 Product Overview S6AL211A94 corresponds to these specifications Communication Interface UART VIN voltage 24 V Dimming type C Sensor input motion sensor ambient light sensor ...

Page 6: ... No 002 08545 Rev B 6 2 About Corresponded UART Interface This product corresponds to UART communication interface for dimming and color control function Baud rate 115 2 kbps 5 Asynchronous transfer mode LSB first NRZ format Data length 8 bit Stop bit 1 bit Parity error no parity ...

Page 7: ...of PWM dimming control 15 SH_2 O Connect external switching FET2 gate of PWM dimming control 16 AGND Ground 17 SH_3 O Connect external switching FET3 gate of PWM dimming control 18 SH_4 O Connect external switching FET4 gate of PWM dimming control 19 TEMP1 I Connect Temperature sensor 1 20 TEMP2 I Connect Temperature sensor 2 21 TEMP3 I Connect Temperature sensor 3 22 TEMP4 I Connect Temperature s...

Page 8: ...E4 ADD4 I Motion sensor connection Pin Please connect to GND level if you do not use the function 41 ADD5 I Unused Pin Connect to GND level 42 ADD6 I Unused Pin Connect to GND level 43 ADD7 I Unused Pin Connect to GND level 44 ADD8 I Unused Pin Connect to GND level 45 SP I Exclusive use of the Test Connect to BIAS 3Pin 46 BIAS 3 O Connect By pass capacitor Do not connect external load 47 AGND Grou...

Page 9: ...ved data length is within 24 byte When continuous reception CR ASCII code 0Dh and LF ASCII code 0Ah within 24 byte it is interpreted as the delimiter of receive data Next received data of continuous reception of CR LF are treated as 1st byte data If there is no delimiter is within 24 byte received data of 24 byte will be discarded And 25th received byte data are treated as 1st byte data If the rec...

Page 10: ...en the state is not the standby OK CR LF 3 PRESET No argument Initialize the device when the light is off bye protection This command is ignored when the light is not off bye protection OK CR LF SELECT 1st slave address Select the slave device When the argument matches the parameter SLAVE ADDRESS all commands is accepted When the argument don t match the parameter SLAVE ADDRESS it is accepted only...

Page 11: ...hannel 2 DIMMING ENABLE3 1 1 DIMMING ENABLE2 1 0 DIMMING ENABLE1 1 0x10 7 1 reserved R W 0000000 0 MOTION SENSOR SWITCH 1 Dimming by the trigger input 0 Disable 1 Enable Note This setting is not written to non volatile memory 0x11 7 4 reserved R W 0000 3 MOTION SENSOR CHECK TIME 0 Time to move to the standby state 0 10 s 1 5 min 2 ILLUMINANCE SENSOR ENABLE 0 Illumination sensor input 0 no input 1 ...

Page 12: ...ess 0x25 7 0 LAMP FAILURE LEVEL2 R Protection status 2 Light out protection excluding Protection status 1 Protection state Output the response TRUE when read this address Not protection state Output the response FALSE when read this address 0x30 7 0 COMMENT0 R W 00h For free use 0x31 7 0 COMMENT1 R W 00h For free use 0x32 7 0 COMMENT2 R W 00h For free use 0x33 7 0 COMMENT3 R W 00h For free use 0x3...

Page 13: ...S6AL211A94 ASSP 4ch LED Driver IC for Intelligent Lighting Hardware Manual Doc No 002 08545 Rev B 13 2 3 Dimming Curve 2 3 1 Logarithm Curve Figure 2 Formula of Logarithm Dimming Curve X n 10 254 n 1 1 3 Figure 3 Logarithm Dimming Curve ...

Page 14: ... UART Interface S6AL211A94 ASSP 4ch LED Driver IC for Intelligent Lighting Hardware Manual Doc No 002 08545 Rev B 14 2 3 2 Linear Curve Figure 4 Formula of Linear Dimming Curve X n 100 255 n Figure 5 Linear Dimming Curve ...

Page 15: ...TIME After the set time the light turn off and this device moves to the standby state to reduce the power consumption When it detects the input H again during the set time the timer that counts the set time is cleared Because immediately after the power is turned on unstable output of the motion sensor ignores the trigger input for 30 seconds When the power is turned on it lights in the brightness...

Page 16: ...ger Input Dimming t s SENSE4 Sense timing LED target brightness t s FADE TIME MOTION SENSOR CHECK TIME MOTION SENSOR CHECK TIME counter start counter clear IF1 WAKEUP CR LF WAKEUP CR LF WAKEUP CR LF LED target brightness t s FADE TIME MOTION SENSOR CHECK TIME Standby transition wait time Standby state Standby transition wait time Standby state t s ...

Page 17: ...Title S6AL211A94 ASSP 4 ch LED Driver IC for Intelligent Lighting Hardware Manual Document Number 002 08545 Revision Issue Date Origin of Change Description of Change 02 10 2015 HSAT Initial Release A 05 30 2016 HSAT Migrated Spansion guide MN405 00002 1v0 E to Cypress format B 01 17 2018 SSAS Updated the Cypress logo and legal Completing Sunset Review ...

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