AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 637
AT91SAM9261-CJ-999
Manufacturer Part Number
AT91SAM9261-CJ-999
Description
IC MCU ARM9 ULTRA LP 217LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9261-CJ-999.pdf
(749 pages)
Specifications of AT91SAM9261-CJ-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
190MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, LCD, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
192K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
For Use With
AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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38.9
38.9.1
38.9.2
6062M–ATARM–23-Mar-09
Register Configuration Guide
STN Mode Example
TFT Mode Example
Once the host has updated the Frame Base Address Registers and the next DMA end of frame
IRQ arrives, the backbuffer and the primary buffer are swapped and the host can work with the
new backbuffer.
Program the PIO Controller to enable LCD signals.
Enable the LCD controller clock in the Power Management Controller.
PMC_SCER = 1 << 17;//LCDC HCLK = HCK1
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 = (16-2), HBP = (48 -1), HPW = (64-1)
• Check the DMAFRMPTx register to ensure that there is enough time to update the DMA
• Update the Frame Base Address Registers when the End Of Frame IRQ is generated.
Base Address registers before the end of frame.
AT91SAM9261 Preliminary
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637
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