SAM9G10 Atmel Corporation, SAM9G10 Datasheet - Page 556
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SAM9G10
Manufacturer Part Number
SAM9G10
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(1274 pages)
2.SAM9261.pdf
(43 pages)
3.SAM9G10.pdf
(750 pages)
4.SAM9G10.pdf
(39 pages)
Specifications of SAM9G10
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
266 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
4
Ssc
3
Sd / Emmc
1
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.08 to 1.32
Fpu
No
Mpu / Mmu
No/Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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33.6.9.12
Figure 33-14. Data OUT Transfer for Endpoint with One Bank
556
556
USB Bus
Packets
RX_BK_RDY
(UDPHS_EPTSTAx)
FIFO (DPR)
Content
SAM9G35
SAM9G35
Bulk OUT or Interrupt OUT: Sending a Buffer Using DMA (Host To Device)
Token OUT
Host Sends Data Payload
Written by UDPHS Device
To use the DMA setting, the AUTO_VALID field is mandatory.
See
information.
DMA Configuration Example:
For OUT transfer, the bank will be automatically cleared by hardware when the application has
read all the bytes in the bank (the bank is empty).
Notes:
Data OUT 1
Data OUT 1
1. First program UDPHS_DMAADDRESSx with the address of the buffer that should be
2. Enable the interrupt of the DMA in UDPHS_IEN
3. Program the DMA Channelx Control Register:
33.6.9.6 Bulk IN or Interrupt IN: Sending a Buffer Using DMA (Device to Host)
transferred.
– Size of buffer to be sent.
– END_B_EN: Can be used for OUT packet truncation (discarding of unbuffered
– END_BUFFIT: Generate an interrupt when BUFF_COUNT in the
– END_TR_EN: End of transfer enable, the UDPHS device can put an end to the
– END_TR_IT: End of transfer interrupt enable, an interrupt is sent after the last USB
– CHANN_ENB: Run and stop at end of buffer.
packet data) at the end of DMA buffer.
UDPHS_DMASTATUSx register reaches 0.
current DMA transfer, in case of a short packet.
packet has been transferred by the DMA, if the USB transfer ended with a short
packet. (Beneficial when the receive size is unknown.)
1. When a zero-length-packet is received, RX_BK_RDY bit in UDPHS_EPTSTAx is cleared auto-
2. If the host sends a zero-length packet, and the endpoint is free, then the device sends an ACK.
matically by AUTO_VALID, and the application knows of the end of buffer by the presence of
the END_TR_IT.
No data is written in the endpoint, the RX_BY_RDY interrupt is generated, and the
BYTE_COUNT field in UDPHS_EPTSTAx is null.
Host Sends the Next Data Payload
ACK
Microcontroller Read
Set by Hardware
Microcontroller Transfers Data
Data OUT 1
Token OUT
Interrupt Pending
Data OUT 2
NAK
Cleared by Firmware,
Data Payload Written in FIFO
Token OUT
Host Resends the Next Data Payload
Written by UDPHS Device
Data OUT 2
Data OUT 2
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
for more
ACK
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