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PCA9685BS Datasheet PDF : 51 Pages
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NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
Table 6. LED_ON, LED_OFF control registers (address 06h to 45h) bit description
Legend: * default value.
Address Register
Bit Symbol
Access Value
Description
06h
LED0_ON_L
7:0 LED0_ON_L[7:0] R/W
0000 0000* LEDn_ON count for LED0, 8 LSBs
07h
LED0_ON_H
7:5 reserved
R
000*
non-writable
4 LED0_ON_H[4]
R/W
0*
LED0 full ON
3:0 LED0_ON_H[3:0] R/W
0000* LEDn_ON count for LED0, 4 MSBs
08h
LED0_OFF_L 7:0 LED0_OFF_L[7:0] R/W
0000 0000* LEDn_OFF count for LED0, 8 LSBs
09h
LED0_OFF_H 7:5 reserved
R
000*
non-writable
4 LED0_OFF_H[4] R/W
1*
LED0 full OFF
3:0 LED0_OFF_H[3:0] R/W
0000*
0Ah
LED1_ON_L
7:0 LED1_ON_L[7:0] R/W
0000 0000* LEDn_ON count for LED1, 8 LSBs
0Bh
LED1_ON_H
7:5 reserved
R
000*
non-writable
4 LED1_ON_H[4]
R/W
0*
LED1 full ON
3:0 LED1_ON_H[3:0] R/W
0000* LEDn_ON count for LED1, 4 MSBs
0Ch
LED1_OFF_L 7:0 LED1_OFF_L[7:0] R/W
0000 0000* LEDn_OFF count for LED1, 8 LSBs
0Dh
LED1_OFF_H 7:5 reserved
R
000*
non-writable
4 LED1_OFF_H[4] R/W
1*
LED1 full OFF
3:0 LED1_OFF_H[3:0] R/W
0000* LEDn_OFF count for LED1, 4 MSBs
0Eh
LED2_ON_L
7:0 LED2_ON_L[7:0] R/W
0000 0000* LEDn_ON count for LED2, 8 LSBs
0Fh
LED2_ON_H
7:5 reserved
R
000*
non-writable
4 LED2_ON_H[4]
R/W
0*
LED2 full ON
3:0 LED2_ON_H[3:0] R/W
0000* LEDn_ON count for LED2, 4 MSBs
10h
LED2_OFF_L 7:0 LED2_OFF_L[7:0] R/W
0000 0000* LEDn_OFF count for LED2, 8 LSBs
11h
LED2_OFF_H 7:5 reserved
R
000*
non-writable
4 LED2_OFF_H[4] R/W
1*
LED2 full OFF
3:0 LED2_OFF_H[3:0] R/W
0000* LEDn_OFF count for LED2, 4 MSBs
12h
LED3_ON_L
7:0 LED3_ON_L[7:0] R/W
0000 0000* LEDn_ON count for LED3, 8 LSBs
13h
LED3_ON_H
7:5 reserved
R
000*
non-writable
4 LED3_ON_H[4]
R/W
0*
LED3 full ON
3:0 LED3_ON_H[3:0] R/W
0000* LEDn_ON count for LED3, 4 MSBs
14h
LED3_OFF_L 7:0 LED3_OFF_L[7:0] R/W
0000 0000* LEDn_OFF count for LED3, 8 LSBs
15h
LED3_OFF_H 7:5 reserved
R
000*
non-writable
4 LED3_OFF_H[4] R/W
1*
LED3 full OFF
3:0 LED3_OFF_H[3:0] R/W
0000* LEDn_OFF count for LED3, 4 MSBs
16h
LED4_ON_L
7:0 LED4_ON_L[7:0] R/W
0000 0000* LEDn_ON count for LED4, 8 LSBs
17h
LED4_ON_H
7:5 reserved
R
000*
non-writable
4 LED4_ON_H[4]
R/W
0*
LED4 full ON
3:0 LED4_ON_H[3:0] R/W
0000* LEDn_ON count for LED4, 4 MSBs
PCA9685
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 2 September 2010
© NXP B.V. 2010. All rights reserved.
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