s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 323

• 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.

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
LCD CONTROLLER/DRIVER
COMMON (COM) SIGNALS
The common signal output pin selection (COM pin selection) varies according to the selected duty cycle.
— In 1/8 duty mode, COM0–COM7 pins are selected
— In 1/16 duty mode, COM0–COM15 pins are selected
When 1/8 duty is selected by clearing LCON.1 to zero, COM8–COM15 (SEG87–SEG80) can be used for SEG port.
SEGMENT (SEG) SIGNALS
The 80 LCD segment signal pins are connected to corresponding display RAM locations at bank 14. Bits of the
display RAM are synchronized with the common signal output pins.
When the bit value of a display RAM location is "1", a select signal is sent to the corresponding segment pin. When
the display bit is "0", a 'no-select' signal is sent to the corresponding segment pin.
12-15