pca9685 NXP Semiconductors, pca9685 Datasheet - Page 20

• Manufacturer Part Number: pca9685
• Description: 16-channel, 12-bit Pwm Fm+ I 2c-bus Led Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 6.
Legend: * default value.
PCA9685_1
Product data sheet
Address
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
Register
LED0_ON_L
LED0_ON_H
LED0_OFF_L
LED0_OFF_H
LED1_ON_L
LED1_ON_H
LED1_OFF_L
LED1_OFF_H
LED2_ON_L
LED2_ON_H
LED2_OFF_L
LED2_OFF_H
LED3_ON_L
LED3_ON_H
LED3_OFF_L
LED3_OFF_H
LED4_ON_L
LED4_ON_H
LED_ON, LED_OFF control registers (address 06h to 45h) bit description
Bit
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
7:0
7:5
4
3:0
Symbol
LED0_ON_L[7:0]
reserved
LED0_ON_H[4]
LED0_ON_H[3:0]
LED0_OFF_L[7:0]
reserved
LED0_OFF_H[4]
LED0_OFF_H[3:0]
LED1_ON_L[7:0]
reserved
LED1_ON_H[4]
LED1_ON_H[3:0]
LED1_OFF_L[7:0]
reserved
LED1_OFF_H[4]
LED1_OFF_H[3:0]
LED2_ON_L[7:0]
reserved
LED2_ON_H[4]
LED2_ON_H[3:0]
LED2_OFF_L[7:0]
reserved
LED2_OFF_H[4]
LED2_OFF_H[3:0]
LED3_ON_L[7:0]
reserved
LED3_ON_H[4]
LED3_ON_H[3:0]
LED3_OFF_L[7:0]
reserved
LED3_OFF_H[4]
LED3_OFF_H[3:0]
LED4_ON_L[7:0]
reserved
LED4_ON_H[4]
LED4_ON_H[3:0]
Rev. 01 — 24 July 2008
Access
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
R/W
R
R/W
R/W
16-channel, 12-bit PWM Fm+ I
Value
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0000 0000*
000*
0*
1*
0*
1*
0*
1*
0*
1*
0*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
Description
LEDn_ON count for LED0, 8 LSBs
non-writable
LED0 full ON
LEDn_ON count for LED0, 4 MSBs
LEDn_OFF count for LED0, 8 LSBs
non-writable
LED0 full OFF
LEDn_ON count for LED1, 8 LSBs
non-writable
LED1 full ON
LEDn_ON count for LED1, 4 MSBs
LEDn_OFF count for LED1, 8 LSBs
non-writable
LED1 full OFF
LEDn_OFF count for LED1, 4 MSBs
LEDn_ON count for LED2, 8 LSBs
non-writable
LED2 full ON
LEDn_ON count for LED2, 4 MSBs
LEDn_OFF count for LED2, 8 LSBs
non-writable
LED2 full OFF
LEDn_OFF count for LED2, 4 MSBs
LEDn_ON count for LED3, 8 LSBs
non-writable
LED3 full ON
LEDn_ON count for LED3, 4 MSBs
LEDn_OFF count for LED3, 8 LSBs
non-writable
LED3 full OFF
LEDn_OFF count for LED3, 4 MSBs
LEDn_ON count for LED4, 8 LSBs
non-writable
LED4 full ON
LEDn_ON count for LED4, 4 MSBs
2
C-bus LED controller
PCA9685
© NXP B.V. 2008. All rights reserved.
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