Manual

897
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
44.5.13 UDPHS Endpoint Clear Status Register
Name: UDPHS_EPTCLRSTAx [x=0..7]
Access Type: Write-only
• FRCESTALL: Stall Handshake Request Clear
0 = no effect.
1 = clear the STALL request. The next packets from host will not be STALLed.
• TOGGLESQ: Data Toggle Clear
0 = no effect.
1 = clear the PID data of the current bank
For OUT endpoints, the next received packet should be a DATA0.
For IN endpoints, the next packet will be sent with a DATA0 PID.
• RX_BK_RDY: Received OUT Data Clear
0 = no effect.
1 = clear the RX_BK_RDY flag of UDPHS_EPTSTAx.
• TX_COMPLT: Transmitted IN Data Complete Clear
0 = no effect.
1 = clear the TX_COMPLT flag of UDPHS_EPTSTAx.
• RX_SETUP/ERR_FL_ISO: Received SETUP/Error Flow Clear
0 = no effect.
1 = clear the RX_SETUP/ERR_FL_ISO flags of UDPHS_EPTSTAx.
• STALL_SNT/ERR_NBTRA: Stall Sent/Number of Transaction Error Clear
0 = no effect.
1 = clear the STALL_SNT/ERR_NBTRA flags of UDPHS_EPTSTAx.
• NAK_IN/ERR_FLUSH: NAKIN/Bank Flush Error Clear
0 = no effect.
1 = clear the NAK_IN/ERR_FLUSH flags of UDPHS_EPTSTAx.
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––––––
15 14 13 12 11 10 9 8
NAK_OUT
NAK_IN/
ERR_FLUSH
STALL_SNT/
ERR_NBTRA
RX_SETUP/
ERR_FL_ISO
– TX_COMPLT RX_BK_RDY –
76543210
–TOGGLESQFRCESTALL–––––