TLC59116F_15 Datasheet, PDF (17/38 Pages) Texas Instruments – 16-Channel Fast-Mode Plus I2C Bus LED Driver

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Register Maps (continued)
TLC59116F
SCLS714C – MARCH 2009 – REVISED SEPTEMBER 2015
Auto-Increment
Flag
Register Address
AI2 AI1 AI0 D4 D3 D2 D1 D0
Auto-Increment Options
Figure 19. Control Register
When the Auto-Increment flag is set (AI2 = logic 1), the five low order bits of the Control register are
automatically incremented after a read or write. This allows the user to program the registers sequentially. Four
different types of Auto-Increment are possible, depending on AI1 and AI0 values.
Table 1. Auto-Increment Options ⁽¹⁾
AI2
AI1
AI0
PIN DESCRIPTION
0
0
0
No auto-increment
1
0
0
Auto-increment for all registers. D[4:0] roll over to 0 0000 after the last
register (1 1011) is accessed.
1
0
1
Auto-increment for individual brightness registers only. D[4:0] roll over
to 0 0010 after the last register (1 0001) is accessed.
1
1
0
Auto-increment for global control registers only. D[4:0] roll over to 1
0010 after the last register (1 0011) is accessed.
1
1
1
Auto-increment for individual and global control registers only. D[4:0]
roll over to 0 0010 after the last register (1 0011) is accessed.
(1) Other combinations not shown in Table 1 (AI[2:0] = 001, 010 and 011) are reserved and must not be
used for proper device operation.
AI[2:0] = 000 is used when the same register must be accessed several times during a single I²C bus
communication (for example, changing the brightness of a single LED). Data is overwritten each time the register
is accessed during a write operation.
AI[2:0] = 100 is used when all the registers must be sequentially accessed (for example, power-up
programming).
AI[2:0] = 101 is used when the four LED drivers must be individually programmed with different values during the
same I²C bus communication (for example, changing color setting to another color setting).
AI[2:0] = 110 is used when the LED drivers must be globally programmed with different settings during the same
I²C bus communication (for example, global brightness or blinking change).
AI[2:0] = 111 is used when individually and global changes must be performed during the same I²C bus
communication (for example, changing color and global brightness at the same time).
Only the five least-significant bits (LSBs) D[4:0] are affected by the AI[2:0] bits.
When Control register is written, the register entry point determined by D[4:0] is the first register that will be
addressed (read or write operation), and can be anywhere between 0 0000 and 1 1011 (as defined in ). When
AI[2] = 1, the Auto-Increment flag is set and the rollover value at which the point where the register increment
stops and goes to the next one is determined by AI[2:0]. See for rollover values. For example, if the Control
register = 1111 0100 (F4h), then the register addressing sequence will be (in hex):
14 → … → 1B → 00 → … → 13 → 02 → … → 13 → 02 → …
as long as the master keeps sending or reading data.
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