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A Microchip 24AA025E48 serial EEPROM (U23) contains a globally unique 48-bit node address, which is compatible with EUI-48(TM) specification. The device is organized as two blocks of 128 x 8-bit memory. One of the blocks stores the 48-bit node address and is write protected, the other block is available for application use. It is accessible over I2C bus with slave device address 0x53.
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Max. I2C Speed for 24AA025E48 EEPROM is 100kHz. |
USER EEPROM
A Microchip 24AA128T serial EEPROM (U10) is availabe for e.g. module idetification and user Data. The device has 128Kbit memory with max 64 bytes page write capability. It is accessible over I2C bus with slave device address 0x50.
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Max. I2C Speed for 24AA128T EEPROM is 100kHz. |
Oscillators
The module has following reference clock signals provided by on-board oscillators and external source from carrier board:
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| v.42 | Martin Rohrmüller |
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| v.41 | Martin Rohrmüller |
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| v.39 | Martin Rohrmüller |
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| v.37 | John Hartfield |
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| v.34 | Martin Rohrmüller |
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allJan Kumann, Ali Naseri, John Hartfiel |
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Table 21: Document change history.
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