AT91SAM9R64-CU Atmel, AT91SAM9R64-CU Datasheet - Page 584
AT91SAM9R64-CU
Manufacturer Part Number
AT91SAM9R64-CU
Description
MCU ARM9 64K SRAM 144-LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9R64-CU
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
2-Wire, SPI, SSC, USART
Maximum Clock Frequency
240 MHz
Number Of Programmable I/os
118
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, AT91SAM9RL-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 3 Channel
Controller Family/series
AT91SAM9xxx
No. Of I/o's
49
Ram Memory Size
64KB
Cpu Speed
240MHz
No. Of Timers
3
Rohs Compliant
Yes
Package
144LFBGA
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
240 MHz
Operating Supply Voltage
1.8|3.3 V
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
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT91SAM9R64-CU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Figure 37-9. DMAC Transfer Flow for Source and Destination Address Auto-reloaded
37.3.4.5
6289C–ATARM–28-May-09
Multi-buffer Transfer with Source Address Auto-reloaded and Linked List Destination Address (Row 6)
HDMA Transfer Complete
Interrupt generated here
Note:
1. Read the Channel Enable register to choose a free (disabled) channel.
2. Set up the chain of linked list items (otherwise known as buffer descriptors) in memory.
3. Write the starting source address in the DMAC_SADDRx register for channel x.
Write the control information in the LLI.DMAC_CTRLAx and DMAC_CTRLBx registers
location of the buffer descriptor for each LLI in memory for channel x. For example, in
the register you can program the following:
c. Set up the transfer characteristics, such as:
– i. Transfer width for the source in the SRC_WIDTH field.
– ii. Transfer width for the destination in the DST_WIDTH field.
– iii. Source AHB master interface layer in the SIF field where source resides.
– iv. Destination AHB master interface layer in the DIF field where destination resides.
– v. Incrementing/decrementing or fixed address for source in SRC_INCR field.
– vi. Incrementing/decrementing or fixed address for destination DST_INCR field.
The values in the LLI.DMAC_SADDRx register locations of each of the Linked List Items (LLIs)
setup up in memory, although fetched during a LLI fetch, are not used.
Channel Disabled by
hardware
Buffer Complete interrupt
generated here
yes
AT91SAM9R64/RL64 Preliminary
Stall until STALLED is cleared
DADDRx, CTRLAx, CTRLBx
by writing to KEEPON field
Replay mode for SADDRx,
HDMA State Machine table?
Channel Enabled by
Is HDMA in Row1 of
EBCIMR[x]=1?
Buffer Transfer
software
yes
no
no
584
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