s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 405

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

S3C2410A
Register Setting Guide (STN)
The LCD controller supports multiple screen sizes by special register setting.
The CLKVAL value determines the frequency of VCLK. This value has to be determined such that the VCLK value is
greater than data transmission rate. The data transmission rate for the VD port of the LCD controller is used to
determine the value of CLKVAL register.
The data transmission rate is given by the following equation:
The LCDBASEU register value is the first address value of the frame buffer. The lowest 4 bits must be eliminated for
burst 4 word access. The LCDBASEL register value depends on LCD size and LCDBASEU. The LCDBASEL value is
given by the following equation:
Mono, 4-bit single scan display
Mono, 8-bit single scan display or 4-bit dual scan display
4 level gray, 4-bit single scan display
4 level gray, 8-bit single scan display or 4-bit dual scan display
16 level gray, 4-bit single scan display
16 level gray, 8-bit single scan display or 4-bit dual scan display
Color, 4-bit single scan display
Color, 8-bit single scan display or 4-bit dual scan display
Data transmission rate = HS
HS:
VS:
FR:
MV:
LCDBASEL = LCDBASEU + LCDBASEL offset
Horizontal LCD size
Vertical LCD size
Frame rate
Mode dependent value
Table 15-6. MV Value for Each Display Mode
VS
Mode
FR
MV
MV Value
1/4
1/8
1/4
1/8
1/4
1/8
3/4
3/8
LCD CONTROLLER
15-39