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Table 4-18. Token Register
BIT
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
OFFSET
0Ah
SOF Threshold Register Token Register
FIELD
CNT[7:0] TOKEN_PID TOKEN_ENDPT
RESET
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RW
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
R/
W
Table 4-19. Token Register Definitions
Bits Field Name Description
15:8 CNT[7:0]
SOF Count Threshold
Represent the SOF count threshold, in byte times.
7:4 TOKEN_PID
Token Type
The token type that the SUB executes (see Table 4-20).
3:0 TOKEN_ENDPT
Endpoint for Token Command
Determines the endpoint address for the token command. The 4-bit value that is
written must be for a valid endpoint.
Table 4-20. Valid PID Tokens
Token_PID Token Type Description
0001 OUT Token USB performs an OUT (TX) transaction.
1001 IN Token USB performs an IN (RX) transaction.
1101 SETUP Token USB performs a SETUP (TX).