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Two ? serial ? communications ? interfaces ? (SCI) ?
Two ? serial ? peripheral ? interfaces ? (SPI) ?
Cryptographic ? acceleration ? unit ? (CAU) ?
Random ? number ? generator ? accelerator ? (RNGA) ?
Analog ? comparators ?
Analog ‐ to ‐ digital ? converter ? (ADC) ?
Two ? I 2 C ? interfaces ?
Carrier ? modulation ? timer ? (CMT) ?
Two ? timer ? modules ? (TPM) ?
Up ? to ? 66 ? GPIOs ? and ? 16 ? Rapid ? GPIOs ?
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Figure ? 1. MCF51JM ? Block ? Diagram ?
3.2 Power ? Supply ?
The ? JM ? Badge ? Board ? can ? be ? powered ? by ? a ? rechargeable ? Li ‐ Ion ? battery ? or ? the ? USB ? interface. ? The ? typical ?
voltage ? supply ? range ? of ? a ? Li ‐ ion ? battery ? is ? 3.1 ‐ 4.2V. ?? The ? USB ? VBUS ? supply ? is ? 5V ? +/ ‐? 5%. ?? In ? order ? to ?
accommodate ? the ? operating ? voltage ? of ? all ? the ? devices ? on ? the ? JM ? Badge ? Board ? (refer ? to ? Table ? 1 ? below), ?
a ? low ‐ dropout ? (LDO) ? regulator ? is ? used ? to ? maintain ? a ? 3.3V ? operating ? voltage. ?
Table ? 1. Voltage ? Supply ? Requirements ?
Device ?
MCF51JM ?
MMA7260QT ?
MPR083/4 ?
Voltage ?
2.7V ? – ? 5.5V ?
3.9V ? – ? 5.5V ?
2.2V ? – ? 3.6V ?
1.8V ? – ? 3.6V ?
Notes ?
When ? internal ? USB ? regulator ? is ? off. ?
When ? internal ? USB ? regulator ? is ? on. ?
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JM ? Badge ? Board ? User’s ? Manual ?
Page ? 5 ? of ? 18 ?
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