alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

docs: add two terms to api-guides/flash_psram_config

Browse Source
This commit is contained in:
Linda 2024-04-08 16:23:56 +08:00
parent 4726afa3e6
commit 8d36c6257e
1 changed files with 19 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
docs/en/api-guides/flash_psram_config.rst
View File

@ -6,16 +6,25 @@ This page is a guide for configuring SPI Flash and external SPI RAM. Supported f
Terminology
-----------
============= ===========================
Term Definition
============= ===========================
**SPI** Serial Peripheral Interface
**MSPI** Memory SPI Peripheral, SPI Peripheral dedicated for memory
**SDR** Single Data Rate
**DDR** Double Data Rate
**line mode** Number of signals used to transfer data in the data phase of SPI transactions. e.g., for 4-bit-mode, the speed of the data phase would be 4 bit per clock cycle.
**FxRx** F stands for Flash, R stands for PSRAM, x stands for line mode. e.g., F4R4 stands for an {IDF_TARGET_NAME} with Quad Flash and Quad PSRAM
============= ===========================
.. list-table::
:header-rows: 1
:widths: 20 80
:align: center
* - Term
- Definition
* - **SPI**
- Serial Peripheral Interface
* - **MSPI**
- Memory SPI Peripheral, SPI Peripheral dedicated for memory
* - **SDR**
- Single Data Transfer Rate (SDR), also known as STR (Single Transfer Rate)
* - **DDR**
- Double Data Transfer Rate (DDR), also known as DTR (Double Transfer Rate)
* - **line mode**
- Number of signals used to transfer data in the data phase of SPI transactions. e.g., for 4-bit-mode, the speed of the data phase would be 4 bit per clock cycle.
* - **FxRx**
- F stands for Flash, R stands for PSRAM, x stands for line mode. e.g., F4R4 stands for an {IDF_TARGET_NAME} with Quad Flash and Quad PSRAM.
.. note::