AT91SAM9R64-CU-999 Atmel, AT91SAM9R64-CU-999 Datasheet - Page 584

• Manufacturer Part Number: AT91SAM9R64-CU-999
• Description: IC MCU ARM9 64K SRAM 144LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9R64-CU-999

• 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: SPI, TWI, UART
• Maximum Clock Frequency: 240 MHz
• Number Of Programmable I/os: 118
• Operating Supply Voltage: 1.65 V to 3.6 V
• 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
• 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: Details

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
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