CXA2108 Sony Corporation, CXA2108 Datasheet - Page 16

• Manufacturer Part Number: CXA2108
• Description: Constant-Current Driver for Full Color LED Display
• Manufacturer: Sony Corporation

7. Data setting
The above mentioned luminance data Dv, brightness data Db and drive current data Dd are set using address
input pins A0 to A9 and data I/O pins D0 to D9. See the Timing Charts for the memory read/write enabled
period, and Table 1. Read/Write Switching Condition Correspondence Table for the pin setting conditions. The
address, data, XWR and XRD setup, hold and other timings should be as stated in the Electrical
Characteristics. See Tables 5. and 6. LED Driver Memory Map with respect to the memory address of each
IOUT output pin (IOUT0 to IOUT23).
The relationship between the data and the memory address is as follows.
Fig. 3. Relationship Between Memory Address and Data (Luminance Data Dv, Brightness Data Db)
MSB
A9
0100101000
0100100111
0100100000
0100011111
0010010000
0010001111
0001111000
0001110111
0001100000
0001011111
0001001000
0001000111
0000110000
0000101111
0000011000
0000010111
0000000000
A9 to A0
MODE
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
LSB
A0
Upper/Lower/RGB
Brightness Data
Can't use
Don't use
UG
UR
LG
UB
LR
LB
– 16 –
Brightness Data
Upper/Lower
Can't use
Don't use
U
L
a + 23
a
IOUT23
IOUT22
IOUT21
IOUT4
IOUT3
IOUT2
IOUT1
IOUT0
•
•
CXA2108Q