SSD1298 Crystalfontz America, Inc.,, SSD1298 Datasheet - Page 52

• Manufacturer Part Number: SSD1298
• Description: 240 Rgb X 320 Tft Lcd Controller Driver Integrated Power Circuit, Gate And Source Driver With Built-in Ram
• Manufacturer: Crystalfontz America, Inc.,

Window Address Function
The window address function enables writing display data sequentially in a window address area made in the internal
GDDRAM. The window address area is made by setting the horizontal address register (start: HSA7-0, end: HEA 7-0
bits) and the vertical address register (start: VSA8-0, end: VEA8-0 bits). The AM and ID[1:0] bits set the transition
direction of RAM address (either increment or decrement, horizontal or vertical, respectively). Setting these bits enables
the SSD1298 to write data including image data sequentially without taking the data wrap position into account. The
window address area must be made within the GDDRAM address map area.
Condition:
00h ≤ HSA[7:0] ≤ HEA[7:0] ≤ EFh
00h ≤ VSA[8:0] ≤ VEA[8:0] ≤ 13Fh
AM and ID[1:0] refer to R11h
Solomon Systech
Window address setting area:
HSA[7:0] = 3Bh; HEA[7:0] = B3h
VSA[8:0] = 8Bh; VEA[8:0] = B3h
AM = “0” and ID[1;]] = “11”
0000h
0000h
0000h
013Fh
Window address area
GDDRAM address map
120x40 at middle
00EFh
00EFh
0000h
013Fh
Mar 2008 P 52/82
Rev 1.1
SSD1298