User`s guide

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Document #: 38-08024 Rev. *B Page 49 of 61
Table 20-3. Details of Modes for Differing Traffic Conditions (see Table 20-2 for the decode legend)
SETUP (if accepting SETUPs)
Properties of Incoming Packet Changes made by SIE to Internal Registers and Mode Bits
Mode Bits token count buffer dval DTOG DVAL COUNT Setup In Out ACK Mode Bits Response Intr
See
Table 16-1
Setup <= 10 data valid updates 1 updates 1 UC UC 1 0 001ACK yes
See
Table 16-1
Setup > 10 junk x updates updates updates 1 UC UC UC No Changeignore yes
See
Table 16-1
Setup x junk invalid updates 0 updates 1 UC UC UC No Changeignore yes
Properties of Incoming Packet Changes made by SIE to Internal Registers and Mode Bits
Mode Bits token count buffer dval DTOG DVAL COUNT Setup In Out ACK Mode Bits Response Intr
DISABLED
0 0 0 0 x x UC x UC UC UC UC UC UC UC No Changeignore no
Nak In/Out
0 0 0 1 Out x UC x UC UC UC UC UC 1 UC No ChangeNAK yes
0 0 0 1 In x UC x UC UC UC UC 1 UC UC No ChangeNAK yes
Ignore In/Out
0 1 0 0 Out x UC x UC UC UC UC UC UC UC No Changeignore no
0 1 0 0 In x UC x UC UC UC UC UC UC UC No Changeignore no
Stall In/Out
0 0 1 1 Out x UC x UC UC UC UC UC 1 UC No ChangeStall yes
0 0 1 1 In x UC x UC UC UC UC 1 UC UC No ChangeStall yes
CONTROL WRITE
Properties of Incoming Packet Changes made by SIE to Internal Registers and Mode Bits
Mode Bits token count buffer dval DTOG DVAL COUNT Setup In Out ACK Mode Bits Response Intr
Normal Out/premature status In
1 0 1 1 Out <= 10 data valid updates 1 updates UC UC 1 1 1 010ACK yes
1 0 1 1 Out > 10 junk x updates updates updates UC UC 1 UC No Changeignore yes
1 0 1 1 Out x junk invalid updates 0 updates UC UC 1 UC No Changeignore yes
1 0 1 1 In x UC x UC UC UC UC 1 UC 1 No ChangeTX 0 yes
NAK Out/premature status In
1 0 1 0 Out <= 10 UC valid UC UC UC UC UC 1 UC No ChangeNAK yes
1 0 1 0 Out > 10 UC x UC UC UC UC UC UC UC No Changeignore no
1 0 1 0 Out x UC invalid UC UC UC UC UC UC UC No Changeignore no
1 0 1 0 In x UC x UC UC UC UC 1 UC 1 No ChangeTX 0 yes
Status In/extra Out
0 1 1 0 Out <= 10UC valid UC UC UC UC UC 1 UC 0 011Stall yes
0 1 1 0 Out > 10 UC x UC UC UC UC UC UC UC No Changeignore no
0 1 1 0 Out x UC invalid UC UC UC UC UC UC UC No Changeignore no
0 1 1 0 In x UC x UC UC UC UC 1 UC 1 No ChangeTX 0 yes
CONTROL READ
Properties of Incoming Packet Changes made by SIE to Internal Registers and Mode Bits
Mode Bits token count buffer dval DTOG DVAL COUNT Setup In Out ACK Mode Bits Response Intr
Normal In/premature status Out
1 1 1 1 Out 2 UC valid 1 1 updates UC UC 1 1 No ChangeACK yes
1 1 1 1 Out 2 UC valid 0 1 updates UC UC 1 UC 0 011Stall yes
1 1 1 1 Out !=2 UC valid updates 1 updates UC UC 1 UC 0 011Stall yes
1 1 1 1 Out > 10 UC x UC UC UC UC UC UC UC No Changeignore no
1 1 1 1 Out x UC invalid UC UC UC UC UC UC UC No Changeignore no