TLC5955 Datasheet, PDF (34/53 Pages) Texas Instruments – TLC5955 48-Channel, 16-Bit, PWM LED Driver with DC, BC, LED Open-Short Detection, and Internal Current Setting

TLC5955
SBVS237 – MARCH 2014
www.ti.com
8.4.4.3 Auto Display Repeat Function
This function can repeat the total display period as long as GSCLK is present, as shown in Figure 29. This
function is switched on or off by the content of the DSPRPT bit in the control data latch.
When the DSPRPT bit is 1, auto display repeat is enabled and the entire display period repeats. When the
DSPRPT bit is 0, auto display repeat is disabled and the entire display period only executes one time after a LAT
signal rising edge is input for GS data writes when the display timing reset is enabled.
LAT
GSCLK
TMGRST bit
in Control Data
Latch (Internal)
1
2
4
5
3
65534 1
4
65535 2
5
65533 65536 3
65534 1
4
7
65535 2
5
8
65533 65536 3
6
9
1 (Auto Display
Repeat enabled)
TMGRST bit=1
1
2
65534
1
65535 2
65536
DSPRPT= 0
(Auto Display
Repeat disabled)
DSPRPT bit
in Control Data
Latch (Internal)
OFF
OUTXn
(GSDATA=FFFFh)
1st entire display period
ON
2nd entire display period
Display period is repeated
by Auto DisplayRepeat
function.
3rd entire display period
OUTXn is forced off
when LAT rising edge is
input for GS data writing
with timing reset mode
enable (TMGRST=1).
Figure 29. Auto Display Repeat Function
1st entire
display period
OUTXn is not turned on again
because Display Auto Repeat
is disable (DSPRPT=0).
34
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