Connect-Tek USB-16 Manual do Utilizador descarregar pdf (Página 39)

Host High Speed Electrical Test Procedure Revision 1.4

39

For Review and Discussion Only

Draft Document Subject to Revision or Rejection

Not For Publication or General Distribution

EL_25 The EOP for all transmitted packets (except SOFs) must be an 8-bit NRZ byte of

01111111 without bit stuffing. (Note, that a longer EOP is waiverable)

Reference documents: USB 2.0 Specification, Section 7.1.13.

 Pass

 Fail

 N/A

 Comments:

EL_23 Hosts transmitting two packets in a row must have an inter-packet gap of at least 88 bit

times and not more than 192 bit times.

Reference documents: USB 2.0 Specification, Section 7.1.18.2.

 Pass

 Fail

 N/A

 Comments:

EL_22 When transmitting after receiving a packet, hosts and devices must provide an inter-

packet gap of at least 8 bit times and not more than 192 bit times.

Reference documents: USB 2.0 Specification, Section 7.1.18.2.

 Pass

 Fail

 N/A

 Comments:

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