S1D13305D00A EPSON [Epson Company], S1D13305D00A Datasheet - Page 60

• Manufacturer Part Number: S1D13305D00A
• Description: LCD Controller ICs
• Manufacturer: EPSON [Epson Company]

CHARACTER GENERATOR
10. CHARACTER GENERATOR
10.1. CG Characteristics
10.1.1. Internal character generator
The internal character generator is recommended for
minimum system configurations containing a S1D13305
series, display RAM, LCD panel, single-chip micropro-
cessor and power supply. Since the internal character
generator uses a CMOS mask ROM, it is also recom-
mended for low-power applications.
• 5 7-pixel font (See Section 17.)
• 160 JIS standard characters
• Can be mixed with character generator RAM (maxi-
• Can be automatically spaced out up to 8
10.1.2. External character generator ROM
The external CG ROM can be used when fonts other than
those in the internal ROM are needed. Data is stored in the
external ROM in the same format used in the internal
ROM. (See Section 10.3.)
• Up to 8 8-pixel characters (M2 = 0) or 8 16-pixel
• Up to 256 characters (192 if used together with the
• Mapped into the display memory address space at
• Characters can be up to 8 16-pixels; however, excess
54
mum of 64 CG RAM characters)
characters (M2 = 1)
internal ROM)
F000H to F7FFH (M2 = 0) or F000H to FFFFH (M2
= 1)
bits must be set to zero.
16 pixels
EPSON
10.1.3. Character generator RAM
The user can freely use the character generator RAM for
storing graphics characters. The character generator RAM
can be mapped by the microprocessor anywhere in dis-
play memory, allowing effective use of unused address
space.
• Up to 8
• Up to 256 characters if mapped at F000H to FFFFH
• Can be mapped anywhere in display memory address
• Mapped into the display memory address space at
characters (M2 = 1)
(64 if used together with character generator ROM)
space if used with the character generator ROM
F000H to F7FFH if not used with the character gen-
erator ROM (more than 64 characters are in the CG
RAM). Set SAG0 to F000H and M1 to zero when
defining characters number 193 upwards.
8-pixel characters (M2 = 0) or 8
S1D13305 Series
Technical Manual
16