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STLED524 Datasheet(PDF) 23 Page - STMicroelectronics

Part # STLED524
Description  Intelligent matrix LED display driver
PDF  72 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLED524 Datasheet(HTML) 23 Page - STMicroelectronics

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DocID026217 Rev 1
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STLED524
Detailed description
4.5.4
Column control register
These registers are used to enable/disable columns of the matrix.
Table 20. SYNC pin behavior
SYNCEN bit
SYNCSEL bit
SYNC pin
Operation
0
0
0
Not synchronized
0
0
1
Not synchronized
0
1
0
Not synchronized
0
1
1
Not synchronized
1
0
0
Synchronized, but the bit change has immediate effect
10
1
Synchronized, the operation is delayed, until SYNC pin
is 0
11
0
Synchronized, the operation is delayed, until SYNC pin
is 1
1
1
1
Synchronized, but bit change has immediate effect
Table 21. Column control 1 register
Column
control 1
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Add = 11h
COL7EN COL6EN COL5EN COL4EN COL3EN COL2EN COL1EN COL0EN
Default
1
11
11
1
1
1



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