13 udphs endpoint clear status register – Rainbow Electronics AT91CAP9S250A User Manual
Page 897
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
–
7
6
5
4
3
2
1
0
–
TOGGLESQ
FRCESTALL
–
–
–
–
–