AT91SAM9R64-CU-999 Atmel, AT91SAM9R64-CU-999 Datasheet - Page 883
![IC MCU ARM9 64K SRAM 144LFBGA](/photos/12/13/121356/144-lfbga_sml.jpg)
AT91SAM9R64-CU-999
Manufacturer Part Number
AT91SAM9R64-CU-999
Description
IC MCU ARM9 64K SRAM 144LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9R64-CU.pdf
(903 pages)
Specifications of AT91SAM9R64-CU-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
240MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, POR, PWM, WDT
Number Of I /o
49
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
72K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Data Converters
A/D 3x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
SPI, TWI, UART
Maximum Clock Frequency
240 MHz
Number Of Programmable I/os
118
Operating Supply Voltage
1.65 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9RL-EK
Minimum Operating Temperature
- 40 C
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Manufacturer
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- Download datasheet (13Mb)
47.2.3.2
47.2.3.3
47.2.4
47.2.4.1
6289C–ATARM–28-May-09
MCI
LCD Periodic Bad Pixels
24-bit Packed Mode
MCI: Busy signal of R1b responses is not taken in account
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
The busy status of the card during the response (R1b) is ignored for the commands CMD7,
CMD28, CMD29, CMD38, CMD42, CMD56. Additionally, for commands CMD42 and CMD56 a
• LCD power off
• DMA disable
• Wait for DMABUSY
• DMA reset
• LCD power on
• DMA enable.
Problem Fix/Workaround
Problem Fix/Workaround
AT91SAM9R64/RL64 Preliminary
883
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