Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
1037
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
EPTYPE[2:0]: Endpoint Type
Read/Write
DTGLE: Data Toggle
Read-only:
0: Identifies DATA0 packet
1: Identifies DATA1 packet
Refer to Chapter 8 of the Universal Serial Bus Specification, Rev. 2.0 for more information on DATA0, DATA1 packet
0: Identifies DATA0 packet
1: Identifies DATA1 packet
Refer to Chapter 8 of the Universal Serial Bus Specification, Rev. 2.0 for more information on DATA0, DATA1 packet
definitions.
EPEDS: Endpoint Enable Disable
Read:
0: Endpoint disabled
1: Endpoint enabled
Write:
0: Disables endpoint
1: Enables endpoint
Control endpoints are always enabled. Reading or writing this field has no effect on control endpoints.
Note:
0: Endpoint disabled
1: Endpoint enabled
Write:
0: Disables endpoint
1: Enables endpoint
Control endpoints are always enabled. Reading or writing this field has no effect on control endpoints.
Note:
After reset, all endpoints are configured as control endpoints (zero).
RXBYTECNT[10:0]: Number of Bytes Available in the FIFO
Read-only
When the host sends a data packet to the device, the USB device stores the data in the FIFO and notifies the microcon-
When the host sends a data packet to the device, the USB device stores the data in the FIFO and notifies the microcon-
troller. The microcontroller can load the data from the FIFO by reading RXBYTECENT bytes in the UDP_FDRx.
Value
Name
Description
0
CTRL
Control
1
ISO_OUT
Isochronous OUT
5
ISO_IN
Isochronous IN
2
BULK_OUT
Bulk OUT
6
BULK_IN
Bulk IN
3
INT_OUT
Interrupt OUT
7
INT_IN
Interrupt IN