Data Sheet

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DEASINO
CPU and Memory
The Main core is ARM Cortex-M4.The processor implements several features that enable
energy-efficient arithmetic and high-performance signal processing including”digital signal
processing” ,”Single-cycle multiply and accumulate instructions”, ”hardware divide”, “8 and 16-bit
single instruction multiple data instructions” and “ Single-precision floating-point unit”
The ARM Cortex Microcontroller Software Interface Standard (CMSIS) hardware abstraction layer
for the ARM Cortex processor series is implemented and available for the M4 CPU.
Real-time execution is highly deterministic in thread mode, to and from sleep modes, and when
handing events at configurable priority levels via the Nested Vectored Interrupt Controller(NVIC).
The floating point unit (FPU) may generate exceptions when sed due to e.g. overflow or
underflow. These exceptions will trigger the FPU interrupt.
The 24-KB SRAMof 1024 byte page size and 192-KB flashof 8-KB block size memory are provided
Power management
DS-52810-01supporttwodifferentpowersupplyalternativesof Internal LDO mode and Low voltage
mode. In internal LDO mode, the system power is generated directly from the supply voltage
VDD. In low voltage mode, the system power is supplied by 1.8V.
The module’s power management features are System OFF mode and System ON mode. In
system OFF mode, the module is in deepest power saving mode. The system’s core functionality
is powered down and all ongoing tasks are terminated.
In system ON mode, the module is fully operational and CPU and selected peripherals can be
brought into a state where they are functional and more or less responsive depending on the
sub-power mode selected by Low power or Constant latency.
Clock management
The module has a 32MHz main crystal oscillator and 32.768kHz RTC crystal oscillator.
Peripherals