Specifications

APPENDIX E. DEBUGGING FOR 1/2 DUTY DRIVE ON EVALUATION BOARD
S5U1C60N03D MANUAL EPSON 39
(DEVELOPMENT SOFTWARE TOOL FOR S1C60N03)
APPENDIX E. DEBUGGING FOR 1/2 DUTY
DRIVE ON EVALUATION BOARD
The evaluation board (S5U1C62N37E) is used to debug S1C60N03 systems. However, the evaluation board
cannot output 1/2 duty signal to drive LCD. When debugging a S1C60N03 system that uses a 1/2 duty
drive, it should be done with the following procedure.
1. Set 1/3 duty function option using the FOG6003.
2. Assign the segments using the SOG6003.
Since only the COM0 and COM1 signals are used for 1/2 duty drive, assign the RAM addresses to be
used to COM0 and COM1.
;< LCD SEGMENT DECODE TABLE >
;SEG COM0 COM1 COM2 COM3 SPEC
0 E00 E01 --- --- S
1 E02 E03 --- --- S
2 E10 E11 --- --- S
3 E12 E13 --- --- S
4 E20 E21 --- --- S
:
:
:
13 EA0 EB0 --- --- S
14 EC0 EC1 --- --- S
RAM addresses
that are used for 1/2 duty drive
3. Debug with the evaluation board and check whether the segment assignment is correct or not.
Be aware that the LCD drive waveform is different and the LCD corresponding to COM2 goes on.
Creating Mask Data
1. Edit the function option data (option No. 2) using the FOG6003 to change the 1/3 duty setting to the 1/2
duty setting.
2. It is unnecessary to change the segment assignment by the SOG6003.
Note: The evaluation board does not support the 1/2 bias LCD drive method. The LCD drive waveform is a
1/3 bias waveform.