AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 831

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

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

831
AT91SAM9G45
To configure the endpoints:
Note: For control endpoints the direction has no effect.
Control endpoints can generate interrupts and use only 1 bank.
All endpoints (except endpoint 0) can be configured either as Bulk, Interrupt or Isochronous. See
Table 38-1. UDPHS Endpoint
The maximum packet size they can accept corresponds to the maximum endpoint size.
Note: The endpoint size of 1024 is reserved for isochronous endpoints.
The size of the DPRAM is
required by the active endpoints must not exceed the size of the DPRAM.
SIZE_DPRAM = SIZE _EPT0
If a user tries to configure endpoints with a size the sum of which is greater than the DPRAM,
then the EPT_MAPD is not set.
The application has access to the physical block of DPR reserved for the endpoint through a
KB logical address space.
The physical block of DPR allocated for the endpoint is remapped all along the
address space. The application can write a
• Fill the configuration register (UDPHS_EPTCFG) with the endpoint size, direction (IN or
• Fill the number of transactions (NB_TRANS) for isochronous endpoints.
• Verify that the EPT_MAPD flag is set. This flag is set if the endpoint size and the number of
• Configure control flags of the endpoint and enable it in UDPHS_EPTCTLENBx according to
OUT), type (CTRL, Bulk, IT, ISO) and the number of banks.
banks are correct compared to the FIFO maximum capacity and the maximum number of
allowed banks.
“UDPHS Endpoint Control Register” on page
+ NB_BANK_EPT1 x SIZE_EPT1
+ NB_BANK_EPT2 x SIZE_EPT2
+ NB_BANK_EPT3 x SIZE_EPT3
+ NB_BANK_EPT4 x SIZE_EPT4
+ NB_BANK_EPT5 x SIZE_EPT5
+ NB_BANK_EPT6 x SIZE_EPT6
+... (refer to
38.6.11 UDPHS Endpoint Configuration
4
KB. The DPR is shared by all active endpoints. The memory size
Description.
64
KB buffer linearly.
876.
Register)
6438F–ATARM–21-Jun-10
64
KB logical
64