SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 1063
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SAM9263
Manufacturer Part Number
SAM9263
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.M40800.pdf
(153 pages)
3.SAM9260.pdf
(290 pages)
4.SAM9261.pdf
(248 pages)
5.SAM9263.pdf
(1109 pages)
6.SAM9263.pdf
(51 pages)
Specifications of SAM9263
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
240 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
4
Can
1
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
96
Self Program Memory
NO
External Bus Interface
2
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Fpu
No
Mpu / Mmu
No / Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
- M40800 PDF datasheet #2
- SAM9260 PDF datasheet #3
- SAM9261 PDF datasheet #4
- SAM9263 PDF datasheet #5
- SAM9263 PDF datasheet #6
- Current page: 1063 of 1109
- Download datasheet (17Mb)
50.2.9.2
50.2.9.3
6249I–ATARM–3-Oct-11
LCD Periodic Bad Pixels
24-bit Packed Mode
leads to reset DMA pointers but not FIFO pointers, the displayed image is shifted.
Apply the following sequence:
LCD periodic bad pixels is due to mis-aligned DMA base address in frame buffer. LCD DMA per-
forms bursts to read memory. These bursts must not cross 1 Kb AMBA boundary.
The burst size in 32-bit words is programmed by field BRSTLN in DMA_FRMCFG register.
The LCD DMA Base Address is programmed in DMA_BADDR1 register.
DMA Base Address must be programmed with a value aligned onto LCD DMA burst size.
e.g.:
BRSTLN = 15
For a 16-word burst, the LCD DMA Base Address must start on 16-word offset: 0x0, 0x40, 0x80
or 0xc0.
BRSTLN = 3
For a 4-word burst, the LCD DMA Base Address must start on 0x0, 0x10, ..., 0xf0.
LCD DMA Base Address and LCD DMA burst size must be selected with care in 24-bit packed
mode. A 32-bit word contains some bits of a pixel and some bits of the following. If LCD DMA
Base Address is not aligned with a pixel start, the colors will be modified.
Respect "LCD periodic bad pixels" erratum constrains lead to select the LCD DMA Base
Address regarding the LCD DMA burst size.
LCD DMA Base Address is to be set on a pixel start, every three 32-bit word.
The offset of the LCD DMA Base Address must be a multiple of 0x30 plus 0x0, 0xc, 0x18 or
0x24. (0x0, 0xc, 0x18, 0x24, 0x30, 0x3c, 0x48, 0x54, 0x60,0x6c, 0x78, 0x84, 0x90, 0x9c, 0xa8,
0xb4, 0xc0 ...)
e.g. regarding the bursts size:
1) BRSTLN = 3 implies the following LCD DMA Base Address offsets: 0x0, 0x30, 0x60, ...
2) BRSTLN = 15 implies the following LCD DMA Base Address offsets: 0x0 and 0xc0 only
• LCD power off
• DMA disable
• Wait for DMABUSY
• DMA reset
• LCD power on
• DMA enable.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
AT91SAM9263
1063
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