AN32051A Datasheet, PDF (60/64 Pages) Panasonic Semiconductor – 7 x 7 Dots Matrix LED Driver LSI

Doc No. TA4-EA-05211
Revision. 3
Product Standards
AN32051A
OPERATION (continued)
7. Firefly lighting example
Firefly lighting example 1
Initial setup
example for
BLA1[3 : 0]
always lighting
1
0
0
0
Current value
15 mA
A1
BLA1 = [1000]
Serial ON
Firefly lighting
BLA1[3 : 0]
setup 1 s
1
1
1
1
Firefly lighting cycle T = 1.013 4 s
Current value ^{FRA1 = [01]}
30 mA
A1
FRA1[1 : 0]
0
0
FRA1[1 : 0]
0
1
DLA1[1 : 0]
0
0
t
DLA1[1 : 0]
0
0
Cycle change
1s2s
Serial ON
BLA1 = [1111]
BLA1[3 : 0]
1
1
1
1
Firefly lighting cycle T2 = 2.026 8 s
Current value
FRA1 = [10]
30 mA
A1
FRA1[1 : 0]
1
0
t
DLA1[1 : 0]
0
0
Serial ON
BLA1 = [1111]
Delay change
BLA1[3 : 0]
Nothing  25%
1
1
1
1
DLA1 = [01]
Current value
30 mA
Firefly lighting cycle T2 = 2.026 8 s
FRA1 = [10]
t5
A1
FRA1[1 : 0]
1
0
t
DLA1[1 : 0]
0
1
t6
t7
t8
t5 = t6 = t8 = 498.4 ms
t7 = 531.6 ms
Serial ON
Established : 2009-11-18
Revised : 2013-04-18
BLA1 = [1111]
t
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