AT32AP7001-ALUT Atmel, AT32AP7001-ALUT Datasheet - Page 179

• Manufacturer Part Number: AT32AP7001-ALUT
• Description: IC MCU 32BIT AVR32 208-LQFP
• Manufacturer: Atmel
• Series: AVR®32 AP7r

Specifications of AT32AP7001-ALUT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: EBI/EMI, I²C, MMC, PS2, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, I²C, POR, PWM, WDT
• Number Of I /o: 90
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: D/A 2x16b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-LQFP
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: EBI, ISI, MCI, PS2, SPI, TWI, USB
• Maximum Clock Frequency: 150 MHz
• Number Of Programmable I/os: 90
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Dac: 16 bit, 1 Channel
• Package: 208PQFP
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 150 MHz
• Operating Supply Voltage: 1.8 V
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATNGW100 - KIT AVR32 NETWORK GATEWAYATSTK1000 - KIT STARTER FOR AVR32AP7000
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

18.9.1
18.9.1.1
Figure 18-7. Multi-block Transfer Using Linked Lists
32015G–AVR32–09/09
Multi-block Transfers
LLPx(0)
Block Chaining Using Linked Lists
CTLx[63..32]
CTLx[31..0]
LLPx(1)
DARx
SARx
• Block chaining using linked lists
A block descriptor (LLI) consists of following registers, SARx, DARx, LLPx, CTL. These regis-
ters, along with the CFGx register, are used by the DMACA to set up and describe the block
transfer.
In this case, the DMACA re-programs the channel registers prior to the start of each block by
fetching the block descriptor for that block from system memory. This is known as an LLI update.
DMACA block chaining is supported by using a Linked List Pointer register (LLPx) that stores the
address in memory of the next linked list item. Each LLI (block descriptor) contains the corre-
sponding block descriptor (SARx, DARx, LLPx, CTLx).
To set up block chaining, a sequence of linked lists must be programmed in memory.
The SARx, DARx, LLPx and CTLx registers are fetched from system memory on an LLI update.
The updated contents of the CTLx register are written back to memory on block completion.
ure 18-7 on page 179
transfers using block chaining.
The Linked List multi-block transfers is initiated by programming LLPx with LLPx(0) (LLI(0) base
address) and CTLx with CTLx.LLP_S_EN and CTLx.LLP_D_EN.
LLI(0)
shows how to use chained linked lists in memory to define multi-block
System Memory
LLPx(1)
CTLx[63..32]
CTLx[31..0]
LLPx(2)
DARx
SARx
LLI(1)
AT32AP7001
LLPx(2)
Fig-
179