at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 890
at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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43.10 Register Configuration Guide
43.10.1
43.10.2
890
AT91SAM9263 Preliminary
STN Mode Example
TFT Mode Example
Program the PIO Controller to enable LCD signals.
Enable the LCD controller clock in the Power Management Controller.
STN color(R,G,B) 320*240, 8-bit single scan, 70 frames/sec, Master clock = 60 Mhz
Data rate : 320*240*70*3/8 = 2.016 MHz
HOZVAL= ((3*320)/8 ) - 1
LINEVAL= 240 -1
CLKVAL = (60 MHz/ (2*2.016 MHz)) - 1= 14
LCDCON1= CLKVAL << 12
LCDCON2 = LITTLEENDIAN | SINGLESCAN | STNCOLOR | DISP8BIT| PS8BPP;
LCDTIM1 = 0;
LCDTIM2 = 10 | (10 << 21);
LCDFRMCFG = (HOZVAL << 21) | LINEVAL;
DMAFRMCFG = (7 << 24) + (320 * 240 * 8) / 32;
This example is based on the NEC TFT color LCD module NL6448BC20-08
TFT 640*480, 16-bit single scan, 60 frames/sec, pixel clock frequency = [21MHz..29MHz] with a
typical value = 25.175 MHz.
The Master clock must be (2*(n + 1))*pixel clock frequency
HOZVAL = 640 - 1
LINEVAL = 480 - 1
If Master clock is 50 MHz
CLKVAL = (50 MHz/ (2*25.175 MHz)) - 1= 0
VFP = (12 -1), VBP = (31-1), VPW = (2-1), VHDLY= (2-1)
HFP = (16-1), HBP = (48 -1), HPW= (96-1)
LCDCON1= CLKVAL << 12
LCDCON2 = LITTLEENDIAN | CLKMOD | INVERT_CLK | INVERT_LINE | INVERT_FRM |
PS16BPP | SINGLESCAN | TFT
LCDTIM1 = VFP | (VBP << 8) | (VPW << 16) | (VHDLY << 24)
LCDTIM2 = HBP | (HPW << 8) | (HFP << 21)
LCDFRMCFG = (HOZVAL << 21) | LINEVAL
DMAFRMCFG = (7 << 24) + (640 * 480* 16) / 32;
.
6249D–ATARM–20-Dec-07
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