LMR4769EW-WCB DENSITRON, LMR4769EW-WCB Datasheet - Page 52

• Manufacturer Part Number: LMR4769EW-WCB
• Description: LCD MODULE, 240X320, BLUE
• Manufacturer: DENSITRON

Specifications of LMR4769EW-WCB

• Lcd Display Type: STN
• Pixel Size (h X W): 0.34mm X 0.34mm
• Display Mode: Transflective
• Interface Type: Serial
• Viewing Area (h X W): 92.14mm X 120.14mm
• Supply Voltage: 32V
• External Depth: 15.6mm
• External: RoHS Compliant
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Backlighting Colour: Blue
• Pixel Pitch (h X W): 0.36mm X 0.36mm

4.1.2
S1D13700 Technical Manual
(8 x 16 pixels x 256
characters max)
Basic CG space
(1) Features of each character generator
(2) Concept of how character generator banks are set
Character Generator (CG)
1 Internal character generator
2 CG RAM
Because the character codes handled by the S1D13700 consist of 8 bits, the number of discrete characters
that can be displayed simultaneously is limited to a maximum of 256. The CGRAM ADR command can
be used to switch banks, however, thus extending the number of usable characters as shown below.
The internal character generator is effective for a minimum display system consisting of the
S1D13700, display memory (data RAM), LCD unit, single-chip MPU, and a power supply. Moreover,
because the internal character generator includes CMOS mask ROM, it is very advantageous when low
power consumption is desired.
The S1D13700 automatically sets spaces in the range of 8 x 16 dots maximum.
CG RAM as a graphic generator allows any desired character font to be defined by the user. Moreover,
because the MPU can alter address mapping in the display memory space can be altered as required,
unused portions of display memory can be effectively utilized.
Character font
Number of characters
Combined use with CG RAM possible (up to 64 characters)
Processing of the character field space part
Character font
Number of characters
Defined area of CG RAM in the display memory space
• 5 x 7 dots (See Section 4.4.1 “Character Fonts (Internal CG)” on page 81.)
• JIS-compliant 160 characters
• 8 x 8 dots maximum <M2 = 0>
• 8 x 16 dots maximum <M2 = 1>
• Up to 64 characters when used in combination with CG ROM
• Up to 256 characters when used only in F000H to FFFFH
• CG RAM (maximum 64 characters) that can be used in combination with CG ROM can be allo-
• CG RAM (maximum 65 characters or more) that cannot be used in combination with CG ROM
cated to any desired contiguous addresses.
must be allocated to fixed addresses F000H through FFFFH. When 193 characters or more must
be defined in this fixed address area, set SAG = F000H and M1 = 0.
MO=0
MO=1
(8 x 16 pixels x 64cha)
(8 x 16 pixels x 256
(5 x 7 pixels x 160
characters max)
characters max)
CG ROM
CG RAM
CG RAM
EPSON
SAG
SAG
CG RAM 1
CG RAM 1
CG RAM 2
4: FUNCTION DESCRIPTION
CG RAM 2
CG RAM 3
CG RAM 3
CG RAM n
CG RAM n
47