MSC1215-XX OKI [OKI electronic componets], MSC1215-XX Datasheet - Page 15

• Manufacturer Part Number: MSC1215-XX
• Description: 17 x 2 Duplex Driver with Dimming, Keyscan and A/D Converter Function
• Manufacturer: OKI [OKI electronic componets]

¡ Semiconductor
Display Data Input
Data input is available only when "H" is applied to the "CS" pin. Input data is shifted into shift
registers through the "DATA I/O" pin at the rising edge of the clock. The data is automatically
loaded to latches at the falling edge of "CS" signal.
[Data Format]
Note: Three bits (T1 to T3) for the test data are used for shipping inspection.
Keyscan Data Output
Data output is available only when "H" is applied to the "CS" pin. When keyscan data output
mode is selected, "DATA I/O" pin is changed to an output mode. Then, 12 bits of keyscan data
come out from "DATA I/O" pin synchronizing with the rising edge of the clock. This output
mode is changed to A/D data output mode at the falling edge of the CS input signal. To select
directly the display input mode from this output mode, serial 2CS pulses should be input to the
CS pin.
[Data Format]
Note: Symbols of the keyscan data are as follows.
A/D Data Output
A/D data output is available only when "H" is input to the CS pin.
When the A/D data output mode is selected, DATA I/O pin is changed to an output mode.
Then 36 bits of A/D data come out from DATA I/O pin synchronizing with the rising edge of
the shift clock.
This output mode is changed to the display input mode at the falling edge of the CS input signal.
[Data Format]
Data
Bit
Data
Bit
For the normal operation mode, all these bits should be set to "0" level.
Data
Bit
MSB-LSB
36-31
CH6
37
34
S34
S
12
RC
36
33
S33
11
*2
MSB-LSB
35
32
30-25
CH5
S32
10
COL Number (COL1-4)
ROW Number (ROW1-3)
S31
9
Display Data
MSB-LSB
S24
24-19
8
CH4
S23 S22
7
MSB-LSB
6
18-13
CH3
6
3
S21
5
5
2
S14
4
MSB-LSB
4
1
12-7
CH2
S13
3
T3
3
S12
Test Data
2
T2
*1
2
MSB-LSB
S11
1
CH1
6-1
T1
1
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