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The latest version of the standard, ANSI/VITA 57.4-2018 defines that both 24C02 and 24C32 devices may be used:
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The latest version of the standard, ANSI/VITA 57.4-2018 defines that both 24C02 and 24C32 devices may be used:
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**Observation 5.4-1:** VITA 57.1 specifies the use of a 2Kb EEPROM per the IPMI specification
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**Observation 5.4-1:** VITA 57.1 specifies the use of a 2Kb EEPROM per the IPMI specification
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which calls up a **24C02**. <snip> The 2Kb EEPROM does not provide
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which calls up a **24C02**. <..snip..> The 2Kb EEPROM does not provide
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enough space for all FMCs, and larger EEPROMs are desired. 2Kb and smaller EEPROMs use
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enough space for all FMCs, and larger EEPROMs are desired. 2Kb and smaller EEPROMs use
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one byte addressing. <snip> As a result, the decision was made to
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one byte addressing. <..snip..> As a result, the decision was made to
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skip over the 4 to 16Kb EEPROMs and specify a 32Kb or larger **24C32** compatible EEPROM if a
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skip over the 4 to 16Kb EEPROMs and specify a 32Kb or larger **24C32** compatible EEPROM if a
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module needs a larger EEPROM. Since the 24C32 uses two byte addressing, it also has a
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module needs a larger EEPROM. Since the 24C32 uses two byte addressing, it also has a
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different base address than the 24C02 compatible EEPROMs.
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different base address than the 24C02 compatible EEPROMs.
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