Understanding Serial Peripheral Interface Communication Protocol

In this article we will learn in depth about the Serial Peripheral interface which is among the widely used communication protocol in Embedded and...
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Purchase M032LE3AE Nuvoton Microcontroller – Campus Component

Get the high-quality Nuvoton M032LE3AE at the best price in India

The Nuvoton M031/M032 series supports up to 128 Kbytes of Flash memory, up to 16 Kbytes of SRAM, for the program code and runtime storage. A special design 512 bytes SPROM (Security Protection ROM) is to protect user’s code or library been read. It supports 4 Kbytes Flash memory of ISP (In-System Programming) to easily upgrade new firmware and the IAP (In-Application Programming) feature that can upgrade firmware while program is running.

Nuvoton M032LE3AE Features: –

Core and System:

Arm® Cortex®-M0

Arm® Cortex®-M0 processor, running up to 48 MHz

Built-in Nested Vectored Interrupt Controller (NVIC)

24-bit system tick timer

Programmable and maskable interrupt

Low Power Sleep mode by WFI and WFE instructions

Hardware Divider (HDIV):

Signed (two’s complement) integer calculation

32-bit dividend with 16-bit divisor calculation capacity

32-bit quotient and 32-bit remainder outputs (16-bit remainder with sign extends to 32-bit)

6 HCLK clocks taken for one cycle calculation Brown-out Detector (BOD)

Two-level BOD with brown-out interrupt and reset option. (2.5V/2.0V)

Low Voltage Reset (LVR):

LVR with 1.7V threshold voltage level


96-bit Unique ID (UID)

128-bit Unique Customer ID (UCID)


Up to 128 KB application ROM (APROM)

Up to 4 KB Flash for user program loader (LDROM)

512 bytes page erase for all embedded flash

Supports CRC-32 checksum calculation function

Hardware external read protection of whole flash memory by Security Lock Bit