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Document 38-08035 Rev. *K Page 62 of 83
22.3 SETUP, IN, and OUT Columns
Depending on the mode specified in the 'Encoding' column, the 'SETUP', 'IN', and 'OUT' columns contain the SIE's responses when
the endpoint receives SETUP, IN, and OUT tokens, respectively.
A 'Check' in the Out column means that upon receiving an OUT token the SIE checks to see whether the OUT is of zero length and
has a Data Toggle (Data1/0) of 1. If these conditions are true, the SIE responds with an ACK. If any of the these conditions is not met,
the SIE responds with a STALL or Ignore.
A 'TX Count' entry in the IN column means that the SIE transmits the number of bytes specified in the Byte Count Bit [3:0] of the
Endpoint Count Register (Table 21-2) in response to any IN token.
23. Details of Mode for Differing Traffic Conditions
Control Endpoint
SIE Bus Event SIE EP0 Mode Register EP0 Count Register EP0 Interrupt Comments
Mode Token Count Dval D0/1 Response S I O A MODE DTOG DVAL COUNT FIFO
DISABLED
0000 x x x x Ignore All
STALL_IN_OUT
0011 SETUP >10 x x junk Ignore
0011 SETUP <=10 invalid x junk Ignore
0011 SETUP <=10 valid x ACK 1 1 0001 update 1 update data Yes ACK SETUP
0011 IN x x x STALL Stall IN
0011 OUT >10 x x Ignore
0011 OUT <=10 invalid x Ignore
0011 OUT <=10 valid x STALL Stall OUT
NAK_IN_OUT
0001 SETUP >10 x x junk Ignore
0001 SETUP <=10 invalid x junk Ignore
0001 SETUP <=10 valid x ACK 1 1 0001 update 1 update data Yes ACK SETUP
0001 IN x x x NAK NAK IN
0001 OUT >10 x x Ignore
0001 OUT <=10 invalid x Ignore
0001 OUT <=10 valid x NAK NAK OUT
ACK_IN_STATUS_OUT
1111 SETUP >10 x x junk Ignore
1111 SETUP <=10 invalid x junk Ignore
1111 SETUP <=10 valid x ACK 1 1 0001 update 1 update data Yes ACK SETUP
1111 IN x x x TX Host Not ACK'd
1111 IN x x x TX 1 1 0001 Yes Host ACK'd
1111 OUT >10 x x Ignore
1111 OUT <=10 invalid x Ignore
1111 OUT <=10, <>2 valid x STALL 0011 Yes Bad Status
1111 OUT 2 valid 0 STALL 0011 Yes Bad Status
1111 OUT 2 valid 1 ACK 1 1 0010 1 1 2 Yes Good Status
STATUS_OUT
0010 SETUP >10 x x junk Ignore
0010 SETUP <=10 invalid x junk Ignore
0010 SETUP <=10 valid x ACK 1 1 0001 update 1 update data Yes ACK SETUP
0010 IN x x x STALL 0011 Yes Stall IN
0010 OUT >10 x x Ignore
0010 OUT <=10 invalid x Ignore
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