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@@ -66,6 +66,14 @@ Currently QMK supports 25xx-series chips over SPI. As such, requires a working s
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`#define EXTERNAL_EEPROM_PAGE_SIZE` | `32` | Page size of the EEPROM in bytes, as specified in the datasheet
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`#define EXTERNAL_EEPROM_ADDRESS_SIZE` | `2` | The number of bytes to transmit for the memory location within the EEPROM
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+Default values and extended descriptions can be found in `drivers/eeprom/eeprom_spi.h`.
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+
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+Alternatively, there are pre-defined hardware configurations for available chips/modules:
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+Module | Equivalent `#define` | Source
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+-----------------|---------------------------------|------------------------------------------
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+MB85RS64V FRAM | `define EEPROM_SPI_MB85RS64V` | <https://www.adafruit.com/product/1897>
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+
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!> There's no way to determine if there is an SPI EEPROM actually responding. Generally, this will result in reads of nothing but zero.
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## Transient Driver configuration :id=transient-eeprom-driver-configuration
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