TLC59108 Datasheet, PDF (13/31 Pages) Texas Instruments – 8-BIT Fm+ I2C-BUS CONSTANT-CURRENT LED SINK DRIVER

TLC59108
www.ti.com .................................................................................................................................................................................................. SLDS156 – MARCH 2009
Mode Register 1 (MODE1)
Table 3 describes Mode Register 1.
Table 3. MODE1 – Mode Register 1 (Address 00h) Bit Description
BIT
SYMBOL
ACCESS ⁽¹⁾
VALUE DESCRIPTION
7
AI2
0 ⁽²⁾
Register Auto-Increment disabled
R
1
Register Auto-Increment enabled
6
AI1
0 ⁽²⁾
Auto-Increment bit 1 = 0
R
1
Auto-Increment bit 1 = 1
5
AI0
0 ⁽²⁾
Auto-Increment bit 0 = 0
R
1
Auto-Increment bit 0 = 1
4
SLEEP
R/W
0
Normal mode⁽³⁾
1 ⁽²⁾
Low power mode. Oscillator off⁽⁴⁾.
3
SUB1
R/W
0 ⁽²⁾
Device does not respond to I²C bus subaddress 1.
1
Device responds to I²C bus subaddress 1.
2
SUB2
R/W
0 ⁽²⁾
Device does not respond to I²C bus subaddress 2.
1
Device responds to I²C bus subaddress 2.
1
SUB3
R/W
0 ⁽²⁾
Device does not respond to I²C bus subaddress 3.
1
Device responds to I²C bus subaddress 3.
0
ALLCALL
R/W
0
Device does not respond to LED All Call I²C bus address.
1 ⁽²⁾
Device responds to LED All Call I²C bus address.
(1) R = read, W = write
(2) Default value
(3) Requires 500 µs maximum for the oscillator to be up and running once SLEEP bit has been set to logic 1. Timings on LED outputs are
not guaranteed if PWMx, GRPPWM, or GRPFREQ registers are accessed within the 100 µs window.
(4) No blinking or dimming is possible when the oscillator is off.
Mode Register 2 (MODE2)
Table 4 describes Mode Register 2.
Table 4. MODE2 – Mode Register 2 (Address 01h) Bit Description
BIT
SYMBOL
ACCESS ⁽¹⁾
VALUE DESCRIPTION
7
EFCLR
R/W
0 ⁽²⁾
Enable error status flag
1
Clear error status flag
6
R
0 ⁽²⁾
Reserved
5
DMBLNK
R/W
0 ⁽²⁾
Group control = dimming
1
Group control = blinking
4
R
0 ⁽²⁾
Reserved
3
OCH
R/W
0 ⁽²⁾
Outputs change on Stop command⁽³⁾
1
Outputs change on ACK
2:0
R
000⁽²⁾ Reserved
(1) R = read, W = write
(2) Default value
(3) Change of the outputs at the Stop command allows synchronizing outputs of more than one TLC59108. Applicable to registers from 02h
(PWM0) to 0Dh (LEDOUT) only.
Copyright © 2009, Texas Instruments Incorporated
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