TLC59291_16 Datasheet, PDF (17/46 Pages) Texas Instruments – 8/16-Channel, Constant Current LED Driver

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Timing Diagrams (continued)
SIN
DATA
1A
DATA
0A
DATA DATA DATA DATA DATA
16B 15B 14B 13B 12B
Low
TLC59291
SLVSA96A – SEPTEMBER 2015 – REVISED MARCH 2016
DATA DATA DATA DATA
3B 2B 1B 0B
High
DATA DATA DATA DATA
16C 15C 14C 13C
SCLK
14 15 16
LAT
1
23
4
5
13 14 15 16
1
2
3 ---
Shift register
LSB Data
(Internal)
DATA DATA
2A 1A
Shift register
LSB +1 Data
(Internal)
DATA DATA
3A 2A
DATA
0A
DATA
1A
Shift register
MSB -1 Data
(Internal)
DATA DATA
0 16A
DATA
15A
Shift register
MSB Data
(Internal)
DATA DATA
1
0
DATA
16A
0
Output on-off
data latch
(Internal)
SIDLD in FC
data latch
XXb
(Internal)
SOUT
DATA DATA
1
0
DATA
16A
Low
SID DATA DATA DATA DATA
0A 16B 15B 14B 13B
0
SID SID DATA DATA DATA
1A 0A 16B 15B 14B
0
DATA DATA DATA
3B 2B 1B
DATA
0B
DATA DATA DATA
4B 3B 2B
DAT A
1B
SID SID DATA DATA DATA
15A 14A 13A 12A 11A
SID SID DATA
1A 0A 16B
SID data selected by SIDLD bit is loaded into the common ⁰
shift register at LAT rising edge except SIDLD is 00b.
SID SID SID SID
15A 14A 13A 12A
SID SID SID
2A 1A 0A
SID
0B
SID
1B
SID
15B
DATA
15B
DATA
16B
0
DATA15A-0A
Old on-off data
DATA DATA
16C 15C
1
SID DATA
0B 16C
1
SID SID
14B 13B
SID SID
15B 14B
LOD data is selected when SIDLD is 01h. LSD data is selected when SIDLD is set to 10b. OLD
data is selected when SID is set to 11b. No SID data is loaded when SIDLD is 00h.
SID SID SID SID
15A 14A 13A 12A
16 bit SID data
SID SID SID
2A 1A 0A
DATA
16B
Low
SID SID
15B 14B
BLANK
SID holder
data
(Internal)
16 bit LOD or
LSD or OLD
data (Internal)
Selected detector data by SIDLD is held in SID holder while BLANK is high level. Or the data is held in SID holder when IDM
working time is passed. The held data is loaded into the common shift register as SID except the case SIDLD is 00h.
Detector data
XXXXh
Detector data
XXXXh
LOD data goes through SID holder while BLANK is low level or IDM working time is not passed.
Detector Detector data
XXXXh
0000h
Detector data
XXXXh
The detectors data are not stable just after BLANK signal goes low.
Detector data
0000h
Figure 10. SID Read Timing
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