KS57C2308/P2308/C2316/P2316
LCD CONTROLLER/DRIVER
12-1
12
LCD CONTROLLER/DRIVER
OVERVIEW
The KS57C2308/C2316 microcontroller can directly drive an up-to-128-dot (32 segments x 4 commons) LCD
panel. Its LCD block has the following components:
— LCD controller/driver
— Display RAM for storing display data
— 32 segment output pins (SEG0–SEG31)
— 4 common output pins (COM0–COM3)
— Four LCD operating power supply pins (V
LC0
–V
LC2
)
The frame frequency, duty and bias, and the segment pins used for display output, are determined by bit settings
in the LCD mode register, LMOD.
The LCD control register, LCON, is used to turn the LCD display on and off, to switch current to the dividing
resistors for the LCD display, and to output LCD clock (LCDCK) and synchronizing signal (LCDSY) for LCD
display expansion. Data written to the LCD display RAM can be transferred to the segment signal pins
automatically without program control.
When a subsystem clock is selected as the LCD clock source, the LCD display is enabled even during main
clock stop and idle modes.
SEG0–SEG23
24
COM0–COM3
4
V
LC0
–
VLC2
3
SEG24–SEG31/
P8.0–P8.7
8
8
DATA BUS
LCD
CONTROLLER /
DRIVER
Figure 12-1. LCD Function Diagram
Summary of Contents for KS57C2308
Page 30: ...ADDRESS SPACES KS57C2308 P2308 C2316 P2316 2 22 NOTES ...
Page 168: ...SAM47 INSTRUCTION SET KS57C2308 P2308 C2316 P2316 5 94 NOTES ...
Page 170: ......
Page 206: ...POWER DOWN KS57C2308 P2308 C2316 P2316 8 8 NOTES ...
Page 210: ...RESET KS57C2308 P2308 C2316 P2316 9 4 NOTES ...
Page 222: ...I O PORTS KS57C2308 P2308 C2316 P2316 10 12 NOTES ...
Page 272: ...LCD CONTROLLER DRIVER KS57C2308 P2308 C2316 P2316 12 24 NOTES ...
Page 280: ...SERIAL I O INTERFACE KS57C2308 P2308 C2316 P2316 13 8 NOTES ...
Page 294: ...MECHANICAL DATA KS57C2308 P2308 C2316 P2316 15 2 NOTES ...
Page 310: ...KS57P2308 P2316 OTP KS57C2308 P2308 C2316 P2316 16 16 NOTES ...
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