MC144032B6WCB-SPTLY Midas, MC144032B6WCB-SPTLY Datasheet - Page 10

• Manufacturer Part Number: MC144032B6WCB-SPTLY
• Description: LCD, 144X32, STN, Y/GN B/L, CHINESE; Backlighting Colour: Yellow Green; LCD Display Type: STN; Pixel Size (H x W): 0....
• Manufacturer: Midas

Graphic RAM (GDRAM)
Graphic display RAM supports 64x256 bits bit-mapped memory space. GDRAM address is set
by writing 2 consecutive bytes for vertical address and horizontal address. Two-bytes data write
to GDRAM for one address. Address counter will automatically increase by one for the next
two-byte data. The procedure is as followings.
Graphic display memory map please refer to Table-8
LCD driver
LCD driver have 33 common and 64 segments to drive the LCD panel. Segment data from
CGRAM /CGROM/HCGROM are shifted into the 64 bits segment latches to display. Extended
segment driver ST7921 can be used to extend the segment drivers to 256.
1.
2.
3.
4.
Set vertical address (Y) for GDRAM
Set horizontal address (X) for GDRAM
Write D 15~ D8 to GDRAM (first byte)
Write D7~D0 to GDRAM (second byte)