3.3 Hardware Version Sense
A unique resistor potential divider allows the
firmware to detect the hardware version.
3.4 Storage - SD Card
This is a native SD Card interface and not a slow SPI based one. It transfers 4 bits of data per
clock cycle (the SPI transfers 1 bit) and will clock at 50MHz with a Class 10 SD Card (SPI will clock
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Содержание An E1T Timepiece
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Страница 82: ...Page 82 Version 1 0 Copyright Grahame Marsh Nick Stock 2019 1 1 SAM3X8C schematic...
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Страница 120: ...E1T Data Sheet Page 120 Version 1 0 Copyright Grahame Marsh Nick Stock 2019...