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Espressif Systems /ESP32-S2 /UHCI0 /CONF1

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Interpret as CONF1

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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 0 (CHECK_SUM_EN)CHECK_SUM_EN 0 (CHECK_SEQ_EN)CHECK_SEQ_EN 0 (CRC_DISABLE)CRC_DISABLE 0 (SAVE_HEAD)SAVE_HEAD 0 (TX_CHECK_SUM_RE)TX_CHECK_SUM_RE 0 (TX_ACK_NUM_RE)TX_ACK_NUM_RE 0 (CHECK_OWNER)CHECK_OWNER 0 (WAIT_SW_START)WAIT_SW_START 0 (SW_START)SW_START 0DMA_INFIFO_FULL_THRS

Description

UHCI configuration register

Fields

CHECK_SUM_EN

This is the enable bit to check header checksum when UHCI receives a data packet.
CHECK_SEQ_EN

This is the enable bit to check sequence number when UHCI receives a data packet.
CRC_DISABLE

Set this bit to support CRC calculation. Data Integrity check present bit in UHCI packet frame should be 1.
SAVE_HEAD

Set this bit to save the packet header when UHCI receives a data packet.
TX_CHECK_SUM_RE

Set this bit to encode the data packet with a checksum.
TX_ACK_NUM_RE

Set this bit to encode the data packet with an acknowledgement when a reliable packet is to be transmit.
CHECK_OWNER

1: Check the link list descriptor when link list owner is DMA controller; 0: Always check link list descriptor.
WAIT_SW_START

The UHCI encoder will jump to ST_SW_WAIT status if this register is set to 1.
SW_START

If current UHCI_ENCODE_STATE is ST_SW_WAIT, the UHCI will start to send data packet out when this bit is set to 1.
DMA_INFIFO_FULL_THRS

This field is used to generate the UHCI_DMA_INFIFO_FULL_WM_INT interrupt when the counter value of DMA RX FIFO exceeds the value of the register.

Links

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Register License

Copyright 2024 Espressif Systems (Shanghai) PTE LTD

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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Register Reference

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