at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 924

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

Figure 44-6. 2D Line Draw From (0,0) to (5,4) with Broken Pattern 0xEBBB
44.3.1.2
924
AT91SAM9263 Preliminary
Block Transfer
(0,0)
(0,7)
A rectangle (or square) shape in pixel units can be transferred between areas in the virtual mem-
ory area of the VRAM. Logical operations such as AND, OR, XOR, NOT, NOR, NAND and
XNOR can be made between the pixels in the source area and the destination area and stored
in the destination area.
The following registers need to be programmed to perform a block transfer:
Y
• 2DGC_BTSXR: size in pixel units on X-axis.
• 2DGC_BTSYR: size in pixel units on Y-axis.
• 2DGC_SBXR: starting position in pixel units on X-axis.
• 2DGC_TEXR: ending position in pixel units on X-axis.
• 2DGC_SBYR: starting position in pixel units on Y-axis.
• 2DGC_TEYR: ending position in pixel units on Y-axis.
• 2DGC_LOR: set LOC bitfield to select a logic operation
• 2DGC_CSR: set CLR[3:0] bitfield to select a color.
• 2DGC_GOR: set GOC bitfield and OP bitfields to select the following values.
MOV/AND/OR/XOR/NOT/NOR/NAND/XNOR.
– Set GOC to select block transfer.
– Set OP[1:0] to select no update X & Y.
– Set OP[2] to select absolute.
– Set OP[3] to select no transformation.
0,0
1,0
Pixel not drawn
2,1
3,2
DISPLAY
4,3
X
5,4
(9,0)
(9,7)
6249D–ATARM–20-Dec-07