TLC5970
SBVS140 –MARCH 2010
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Mode 1 is the middle frequency transfer mode. Maximum transfer frequency and transmission distance are mean
between mode 0 and mode 2. The SDTY/SDTZ data change after 50 ns (typical) from when the SCKA/SCKB
rising clock is input.
Mode 2 is the high-frequency transfer mode. Maximum transfer frequency is highest in the three timing modes.
This mode should be used for short distance data transmission. SDTY/SDTZ data change after 30 ns (typical)
from when the SCKA/SCKB rising clock is input. The timing diagram for each mode is shown in Figure 30 to
Figure 32.
SDTA
SDTB
D39A+
D38A+
D37A+
D1A+
D0A+
D39B+
D39A-
D38A-
D37A-
D1A-
D0A-
D39B-
SCKA
SCKB
Generated Shift Data
(Internal)
D0
D39A
1
D38A
2
D37A
3
D1A
D0A
40
D39B
Generated Shift Clock
(Internal)
3
40
1
2
Timing Adjusted Shift Clock
(Internal)
Shift Register Bit 0
(Internal)
D0
D39A
D38A
D37
D37A
D1A
D0A
Shift Register Bit 39
(Internal)
D39
D38
D36
D0
D39A
SDTY
SDTZ
D39+
D38+
D37+
D0+
D39A+
D39-
D38-
D37-
D0-
D39A-
SCKY
SCKZ
Figure 30. DSI Timing Mode 0
38
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