LM3S5739 Datasheet, PDF (734/856 Pages) Texas Instruments – Stellaris® LM3S5739 Microcontroller

Universal Serial Bus (USB) Controller
Register 62: USB Receive Control and Status Endpoint 1 Low (USBRXCSRL1),
offset 0x116
Register 63: USB Receive Control and Status Endpoint 2 Low (USBRXCSRL2),
offset 0x126
Register 64: USB Receive Control and Status Endpoint 3 Low (USBRXCSRL3),
offset 0x136
Host
USBRXCSRLn is an 8-bit register that provides control and status bits for transfers through the
currently selected receive endpoint.
Device
Host Mode
USB Receive Control and Status Endpoint 1 Low (USBRXCSRL1)
Base 0x4005.0000
Offset 0x116
Type R/W, reset 0x00
7
6
5
4
3
2
1
0
CLRDT STALLED REQPKT FLUSH ^{DATAERR /} ERROR
NAKTO
FULL
RXRDY
Type W1C
R/WC
R/W
R/W
R/W
R/W
RO
R/W
Reset
0
0
0
0
0
0
0
0
Bit/Field
7
6
5
Name
CLRDT
STALLED
REQPKT
Type
W1C
R/WC
R/W
Reset
0
0
0
Description
Clear Data Toggle
Writing a 1 to this bit clears the DT bit in the USBRXCSRHn register.
Endpoint Stalled
Value Description
0 A STALL handshake has not been received.
1 A STALL handshake has been received. The EPn bit in the
USBRXIS register is also set.
Software must clear this bit.
Request Packet
Value Description
0 No request.
1 Requests an IN transaction.
This bit is cleared when RXRDY is set.
734
November 17, 2011
Texas Instruments-Production Data