TLC59116-Q1 Datasheet, PDF (19/39 Pages) Texas Instruments – 16-Channel Constant-Current LED Sink Driver

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Programming (continued)
TLC59116-Q1
SLDS223A – MARCH 2016 – REVISED MARCH 2016
Slave Address
Control Register
New LED All Call I²C Address
(see Note B)
Sequence A
S A6 A5 A4 A3 A2 A1 A0 0 A X X X 1 1 0 1 1 A 1 1 0 1 1 0 1 X A P
Start Condition
R/W
ACK From Slave
ACK From Slave Stop Condition
ALLCALLADR Register Selection
Auto-Increment Options
Auto-Increment Flag
ACK From Slave
LED All Call I²C Address
Control Register
The 16 LEDs are on at ACK (see Note C)
LEDOUT0 Register (LED3 to 0 Fully On)
Sequence B
S1 1 0 1 1 0 1 0 A XX X 1 0 1 0 0 A0 1 0 1 0 1 0 1 AP
Start Condition
R/W
ACK From the
Four Slaves
ACK From the Stop Condition
Four Slaves
LEDOUT0 Register Selection
ACK From Slave
A. In this example, several TLC59116-Q1 devices are used, and the same Sequence A is sent to each of them.
B. The ALLCALL bit in the MODE1 register is equal to 1 for this example.
C. The OCH bit in the MODE2 register is equal to 1 for this example.
Figure 17. LED All Call I²C Bus Address Programming and LED All Call Sequence
9.5.2 System Configuration
A device generating a message is a transmitter; a device receiving is the receiver. The device that controls the
message is the master and the devices that are controlled by the master are the slaves (see Figure 18).
SDA
SCL
Master
Transmitter/
Receiver
Slave
Receiver
Slave
Transmitter/
Receiver
Master
Transmitter
Master
Transmitter/
Receiver
I²C Bus
Multiplexer
Slave
Figure 18. System Configuration
9.5.3 Device Address
Following a Start condition, the bus master must output the address of the slave it is accessing.
9.5.4 Regular I²C Bus Slave Address
The I²C Bus slave address of the TLC59116-Q1 is shown in Figure 19. To conserve power, no internal pullup
resistors are incorporated on the hardware-selectable address pins, and they must be pulled high or low. For
buffer management purposes, a set of sector information data should be stored.
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