Regviz

Raspberry Pi /RP2350 /USB /NAK_POLL

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as NAK_POLL

Share

Cut and paste this URL to share the unmodified register and value:

https://regviz.com/r/Raspberry Pi/RP2350/USB/NAK_POLL#0x0

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0DELAY_LS0RETRY_COUNT_LO 0DELAY_FS0 (STOP_EPX_ON_NAK)STOP_EPX_ON_NAK 0 (EPX_STOPPED_ON_NAK)EPX_STOPPED_ON_NAK 0RETRY_COUNT_HI

Description

Used by the host controller. Sets the wait time in microseconds before trying again if the device replies with a NAK.

Fields

DELAY_LS

NAK polling interval for a low speed device
RETRY_COUNT_LO

Bits 5:0 of nak_retry_count
DELAY_FS

NAK polling interval for a full speed device
STOP_EPX_ON_NAK

Stop polling epx when a nak is received
EPX_STOPPED_ON_NAK

EPX polling has stopped because a nak was received
RETRY_COUNT_HI

Bits 9:6 of nak_retry count

Links

()

Register License

Copyright © 2024 Raspberry Pi Ltd.

SPDX-License-Identifier: BSD-3-Clause

 ()

Register Reference

https://github.com/cmsis-svd/cmsis-svd-data