pca9685 NXP Semiconductors, pca9685 Datasheet - Page 21

• 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
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
Register
LED4_OFF_L
LED4_OFF_H
LED5_ON_L
LED5_ON_H
LED5_OFF_L
LED5_OFF_H
LED6_ON_L
LED6_ON_H
LED6_OFF_L
LED6_OFF_H
LED7_ON_L
LED7_ON_H
LED7_OFF_L
LED7_OFF_H
LED8_ON_L
LED8_ON_H
LED8_OFF_L
LED8_OFF_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
LED4_OFF_L[7:0]
reserved
LED4_OFF_H[4]
LED4_OFF_H[3:0]
LED5_ON_L[7:0]
reserved
LED5_ON_H[4]
LED5_ON_H[3:0]
LED5_OFF_L[7:0]
reserved
LED5_OFF_H[4]
LED5_OFF_H[3:0]
LED6_ON_L[7:0]
reserved
LED6_ON_H[4]
LED6_ON_H[3:0]
LED6_OFF_L[7:0]
reserved
LED6_OFF_H[4]
LED6_OFF_H[3:0]
LED7_ON_L[7:0]
reserved
LED7_ON_H[4]
LED7_ON_H[3:0]
LED7_OFF_L[7:0]
reserved
LED7_OFF_H[4]
LED7_OFF_H[3:0]
LED8_ON_L[7:0]
reserved
LED8_ON_H[4]
LED8_ON_H[3:0]
LED8_OFF_L[7:0]
reserved
LED8_OFF_H[4]
LED8_OFF_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*
1*
0*
1*
0*
1*
0*
1*
0*
1*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
0000*
Description
LEDn_OFF count for LED4, 8 LSBs
non-writable
LED4 full OFF
LEDn_OFF count for LED4, 4 MSBs
LEDn_ON count for LED5, 8 LSBs
non-writable
LED5 full ON
LEDn_ON count for LED5, 4 MSBs
LEDn_OFF count for LED5, 8 LSBs
non-writable
LED5 full OFF
LEDn_OFF count for LED5, 4 MSBs
LEDn_ON count for LED6, 8 LSBs
non-writable
LED6 full ON
LEDn_ON count for LED6, 4 MSBs
LEDn_OFF count for LED6, 8 LSBs
non-writable
LED6 full OFF
LEDn_OFF count for LED6, 4 MSBs
LEDn_ON count for LED7, 8 LSBs
non-writable
LED7 full ON
LEDn_ON count for LED7, 4 MSBs
LEDn_OFF count for LED7, 8 LSBs
non-writable
LED7 full OFF
LEDn_OFF count for LED7, 4 MSBs
LEDn_ON count for LED8, 8 LSBs
non-writable
LED8 full ON
LEDn_ON count for LED8, 4 MSBs
LEDn_OFF count for LED8, 8 LSBs
non-writable
LED8 full OFF
LEDn_OFF count for LED8, 4 MSBs
…continued
2
C-bus LED controller
PCA9685
© NXP B.V. 2008. All rights reserved.
21 of 50