Table 4-18. token register, Table 4-19. token register definitions, Table 4-20. valid pid tokens – Lantronix DSTni-EX User Manual
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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).