AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 1000
![KIT EVAL FOR AT91SAM9G45](/photos/9/26/92642/at91sam9g45-ekes_sml.jpg)
AT91SAM9G45-EKES
Manufacturer Part Number
AT91SAM9G45-EKES
Description
KIT EVAL FOR AT91SAM9G45
Manufacturer
Atmel
Series
AT91SAM Smart ARMr
Type
MCUr
Datasheets
1.AT91SAM9G45-EKES.pdf
(56 pages)
2.AT91SAM9G45-EKES.pdf
(1218 pages)
3.AT91SAM9G45-EKES.pdf
(66 pages)
Specifications of AT91SAM9G45-EKES
Contents
Board
Processor To Be Evaluated
SAM9G45
Data Bus Width
32 bit
Interface Type
I2C, SPI, UART
Maximum Operating Temperature
+ 50 C
Minimum Operating Temperature
- 10 C
Operating Supply Voltage
1.8 V to 3.3 V
For Use With/related Products
AT91SAM9G45
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
Q4626953
- Current page: 1000 of 1218
- Download datasheet (19Mb)
Figure 41-15. DMAC Transfer with Linked List Source Address and Contiguous Destination Address
6438F–ATARM–21-Jun-10
Source Layer
Address of
SADDR(1)
SADDR(0)
SADDR(2)
Note:
The DMAC transfer might look like that shown in
nation address is decrementing.
The DMAC transfer flow is shown in
18. The DMAC does not wait for the buffer interrupt to be cleared, but continues and
the linked list item fetched prior to the start of the buffer transfer. Only DMAC_CTRLAx
register is written out because only the DMAC_CTRLAx.BTSIZE and
DMAC_CTRLAX.DONE fields have been updated by DMAC hardware. Additionally, the
DMAC_CTRLAx.DONE bit is asserted when the buffer transfer has completed.
fetches the next LLI from the memory location pointed to by current DMAC_DSCRx
register and automatically reprograms the DMAC_SADDRx, DMAC_CTRLAx,
DMAC_CTRLBx and DMAC_DSCRx channel registers. The DMAC_DADDRx register
is left unchanged. The DMAC transfer continues until the DMAC samples the
DMAC_CTRLAx, DMAC_CTRLBx and DMAC_DSCRx registers at the end of a buffer
transfer match that described in Row 1 of
knows that the previous buffer transferred was the last buffer in the DMAC transfer.
Do not poll the DMAC_CTRLAx.DONE bit in the DMAC memory map. Instead, poll the
LLI.DMAC_CTRLAx.DONE bit in the LLI for that buffer. If the poll LLI.DMAC_CTRLAx.DONE bit is
asserted, then this buffer transfer has completed. This LLI.DMAC_CTRLAx.DONE bit was cleared
at the start of the transfer.
Source Buffers
Buffer 1
Buffer 0
Buffer 2
Figure 41-16 on page
Destination Buffers
Buffer 2
Buffer 1
Buffer 0
Table 41-2 on page
Figure 41-15 on page 1000
1001.
DADDR(2)
DADDR(1)
DADDR(0)
Destination Layer
AT91SAM9G45
982. The DMAC then
Address of
Note that the desti-
1000
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