PCA9685BS NXP [NXP Semiconductors], PCA9685BS Datasheet - Page 8

• Manufacturer Part Number: PCA9685BS
• Description: 16-channel, 12-bit PWM Fm+ I2C-bus LED controller
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA9685_2
Product data sheet
7.1.4 Software Reset I
7.2 Control register
The address shown in
performed by the master. The Software Reset address (SWRST Call) must be used with
R/W = logic 0. If R/W = logic 1, the PCA9685 does not acknowledge the SWRST. See
Section 7.6 “Software reset”
Remark: The Software Reset I
as a regular I
Following the successful acknowledgement of the slave address, LED All Call address or
LED Sub Call address, the bus master will send a byte to the PCA9685, which will be
stored in the Control register.
This register is used as a pointer to determine which register will be accessed.
Fig 5.
Fig 6.
Software Reset address
reset state = 00h
Remark: The Control register does not apply to the Software Reset I
Control register
2
C-bus slave address or as an LED All Call or LED Sub Call address.
2
C-bus address
Figure 5
Rev. 02 — 16 July 2009
for more detail.
D7
0
2
is used when a reset of the PCA9685 needs to be
C-bus address is a reserved address and cannot be used
D6
16-channel, 12-bit PWM Fm+ I
0
D5
0
D4
0
D3
0
D2
1
002aab416
D1
002aac826
1
R/W
D0
0
2
C-bus address.
2
C-bus LED controller
PCA9685
© NXP B.V. 2009. All rights reserved.
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