What is the burst length in endpoint configuration?

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MaXi_1246331
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In FX3 firmware, CyU3PEpConfig_t has a field named burstLen. It is the Maximum burst length in packets according to the FX3 SDK Firmware API Guide. But I still do not know how it makes difference in application. Does it affect slave FIFO transferring? Is there any explanation about the concept of burst in the datasheet?

Thank you

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YiZ_31
Moderator
Moderator
Moderator
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Hi,

Please refer to Universal Serial Bus 3.2 Specification Chapter 4.4.1:

Data Bursting enhances efficiency by eliminating the wait time for acknowledgements on a per data packet basis. Each endpoint on an Enhanced SuperSpeed device indicates the number of packets that it can send/receive (called the maximum data burst size) before it has to wait for an explicit handshake. Maximum data burst size is an individual endpoint capability; a host determines an endpoint’s maximum data burst size from the SuperSpeed Endpoint Companion descriptor associated with this endpo int (refer to Section 9.6.7).

Regards,

Yi

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1 Reply
YiZ_31
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hi,

Please refer to Universal Serial Bus 3.2 Specification Chapter 4.4.1:

Data Bursting enhances efficiency by eliminating the wait time for acknowledgements on a per data packet basis. Each endpoint on an Enhanced SuperSpeed device indicates the number of packets that it can send/receive (called the maximum data burst size) before it has to wait for an explicit handshake. Maximum data burst size is an individual endpoint capability; a host determines an endpoint’s maximum data burst size from the SuperSpeed Endpoint Companion descriptor associated with this endpo int (refer to Section 9.6.7).

Regards,

Yi