AT32AP7002-CTUT Atmel, AT32AP7002-CTUT Datasheet - Page 761
AT32AP7002-CTUT
Manufacturer Part Number
AT32AP7002-CTUT
Description
IC MCU 32BIT AVR32 196-CBGA
Manufacturer
Atmel
Series
AVR®32 AP7r
Specifications of AT32AP7002-CTUT
Core Processor
AVR
Core Size
32-Bit
Speed
150MHz
Connectivity
EBI/EMI, I²C, MMC, PS2, SPI, SSC, UART/USART, USB
Peripherals
AC'97, DMA, I²C, LCD, POR, PWM, WDT
Number Of I /o
85
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
D/A 2x16b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
196-CBGA
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
I2C, JTAG, PS2, SPI, SSC, UART, USART, USB
Maximum Clock Frequency
150 MHz
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Dac
16 bit, 2 Channel
Package
196CTBGA
Device Core
AVR32
Family Name
AT32
Maximum Speed
150 MHz
Operating Supply Voltage
1.8|3.3 V
For Use With
ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATNGW100 - KIT AVR32 NETWORK GATEWAYATSTK1000 - KIT STARTER FOR AVR32AP7000
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Details
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Manufacturer
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Price
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34.9
34.10 2D Memory Addressing
Figure 34-13. .Frame Buffer Addressing
32054F–AVR32–09/09
Double-buffer Technique
Frame Buffer
The double-buffer technique is used to avoid flickering while the frame being displayed is
updated. Instead of using a single buffer, there are two different buffers, the backbuffer (back-
ground buffer) and the primary buffer (the buffer being displayed).
The host updates the backbuffer while the LCD Controller is displaying the primary buffer. When
the backbuffer has been updated the host updates the DMA Base Address registers.
When using a Dual Panel LCD Module, both base address pointers should be updated in the
same frame. There are two possibilities:
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.
When using a dual-panel LCD module, both base address pointers should be updated in the
same frame. In order to achieve this, the DMAUPDT bit in DMACON register must be used to
validate the new base address.
The LCDC can be configured to work on a frame buffer larger than the actual screen size. By
changing the values in a few registers, it is easy to move the displayed area along the frame buf-
fer width and height.
•Check the DMAFRMPTx register to ensure that there is enough time to update the DMA Base
•Update the Frame Base Address Registers when the End Of Frame IRQ is generated.
Address registers before the end of frame.
Pixel Offset
Line
Address Increment
...
Pixel Offset
Addr.Inc
AT32AP7002
761
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