AT91SAM9263B-CU Atmel, AT91SAM9263B-CU Datasheet - Page 272
AT91SAM9263B-CU
Manufacturer Part Number
AT91SAM9263B-CU
Description
IC ARM9 MCU 200 MHZ 324-TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9263B-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
240MHz
Connectivity
CAN, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
2-Wire, EBI, I2S, MCI, SPI, USART
Maximum Clock Frequency
200 MHz
Number Of Programmable I/os
160
Number Of Timers
4
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, AT91SAM9263-EK
Minimum Operating Temperature
- 40 C
Package
324TFBGA
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
200 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
Controller Family/series
AT91SAM9xxx
No. Of I/o's
160
Ram Memory Size
96KB
Cpu Speed
240MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
AT91SAM9263-EK - KIT EVAL FOR AT91SAM9263AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q3735625
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AT91SAM9263
DMA transfer: Software controls the number of blocks in a DMAC transfer. Once the DMA
transfer has completed, then hardware within the DMAC disables the channel and can generate
an interrupt to signal the completion of the DMA transfer. You can then re-program the channel
for a new DMA transfer.
Single-block DMA transfer: Consists of a single block.
Multi-block DMA transfer: A DMA transfer may consist of multiple DMAC blocks. Multi-block
DMA transfers are supported through block chaining (linked list pointers), auto-reloading of
channel registers, and contiguous blocks. The source and destination can independently select
which method to use.
Scatter: Relevant to destination transfers within a block. The destination AMBA address is
incremented/decremented by a programmed amount when a scatter boundary is reached. The
number of AMBA transfers between successive scatter boundaries is under software control.
Gather: Relevant to source transfers within a block. The source AMBA address is incre-
mented/decremented by a programmed amount when a gather boundary is reached. The
number of AMBA transfers between successive gather boundaries is under software control.
Channel locking: Software can program a channel to keep the AHB master interface by locking
the arbitration for the master bus interface for the duration of a DMA transfer, block, or transac-
tion (single or burst).
Bus locking: Software can program a channel to maintain control of the AMBA bus by asserting
hlock for the duration of a DMA transfer, block, or transaction (single or burst). Channel locking
is asserted for the duration of bus locking at a minimum.
FIFO mode: Special mode to improve bandwidth. When enabled, the channel waits until the
FIFO is less than half full to fetch the data from the source peripheral and waits until the FIFO is
greater than or equal to half full to send data to the destination peripheral. Thus, the channel can
transfer the data using AMBA bursts, eliminating the need to arbitrate for the AHB master inter-
face for each single AMBA transfer. When this mode is not enabled, the channel only waits until
the FIFO can transmit/accept a single AMBA transfer before requesting the master bus
interface.
Pseudo fly-by operation: Typically, it takes two AMBA bus cycles to complete a transfer, one
for reading the source and one for writing to the destination. However, when the source and des-
tination peripherals of a DMA transfer are on different AMBA layers, it is possible for the DMAC
to fetch data from the source and store it in the channel FIFO at the same time as the DMAC
extracts data from the channel FIFO and writes it to the destination peripheral. This activity is
– Linked lists (block chaining) – A linked list pointer (LLP) points to the location in
– Auto-reloading – The DMAC automatically reloads the channel registers at the end
– Contiguous blocks – Where the address between successive blocks is selected to
burst transaction length is under program control and normally bears some
relationship to the FIFO sizes in the DMAC and in the source and destination
peripherals.
system memory where the next linked list item (LLI) exists. The LLI is a set of
registers that describe the next block (block descriptor) and an LLP register. The
DMAC fetches the LLI at the beginning of every block when block chaining is
enabled.
of each block to the value when the channel was first enabled.
be a continuation from the end of the previous block.
6249H–ATARM–27-Jul-09
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