AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 1001
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
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- Download datasheet (19Mb)
Figure 41-16. DMAC Transfer Flow for Linked List Source Address and Contiguous Destination Address
41.4.6
6438F–ATARM–21-Jun-10
Disabling a Channel Prior to Transfer Completion
Under normal operation, software enables a channel by writing a ‘1’ to the Channel Handler
Enable Register, DMAC_CHER.ENABLE[n], and hardware disables a channel on transfer com-
pletion by clearing the DMAC_CHSR.ENABLE[n] register bit.
The recommended way for software to disable a channel without losing data is to use the SUS-
PEND[n] bit in conjunction with the EMPTY[n] bit in the Channel Handler Status Register.
Buffer Complete interrupt
HDMA Transfer Complete
interrupt generated here
generated here
SADDRx, CTRLAx,CTRLBx, DSCRx
Hardware reprograms
HDMA buffer transfer
Channel Enabled by
Writeback of control
Channel Disabled by
information of LLI
Is HDMA in
LLI Fetch
Row 1 ?
software
hardware
yes
no
AT91SAM9G45
1001
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