s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 320

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

LCD CONTROLLER/DRIVER
S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
LCD SEG EXPAND FUNCTION
If you want to expand the LCD SEG, the following conditions must be met:
— LCDFR, M, CLO1, CLO2, and CL must be connected to the SEG driver.
— V
, V
, V
, and V
must be connected to the SEG driver.
LC1
LC3
LC4
SS
— Data line must be connected to the SEG driver.
To expand the LCD SEG, please follows these steps:
— Set P2.0/M, P2.1/LCDFR, P2.2/CLO1, P2.3/CLO2, and P3.0/CL to the output pin.
— Clear the output latch of P2.0/M, P2.1/LCDFR, P2.2/CLO1, P2.3/CLO2, and P3.0/CL.
— Set the value of CLMOD2.
— Set the value of CLMOD1.1–1.0.
— Set CLMOD1.3 to "1".
— Set LCON.3 to "1".
— Enable the SEG driver by manuplating E (chip enable), RS, R/W of SEG driver.
— Transfer the instruction and the data into the data bus.
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