at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 861

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

42.6.11
Register Name:
Access Type:
• FIFO_DATA[7:0]: FIFO Data Value
The microcontroller can push or pop values in the FIFO through this register.
RXBYTECNT in the corresponding UDP_ CSRx register is the number of bytes to be read from the FIFO (sent by the host).
The maximum number of bytes to write is fixed by the Max Packet Size in the Standard Endpoint Descriptor. It can not be
more than the physical memory size associated to the endpoint. Refer to the Universal Serial Bus Specification, Rev. 2.0
for more information.
861
31
23
15
–
–
–
7
AT91SAM9263 Preliminary
UDP FIFO Data Register
30
22
14
UDP_ FDRx [x = 0..5]
Read/Write
–
–
–
6
29
21
13
–
–
–
5
28
20
12
–
–
–
4
FIFO_DATA
27
19
11
–
–
–
3
26
18
10
–
–
–
2
25
17
–
–
9
–
1
6249D–ATARM–20-Dec-07
24
16
–
–
8
–
0