The LPC4320FBD144 is an ARM Cortex-M4 based digital signal controller with an ARM Cortex-M0 coprocessor designed for embedded applications requiring signal processing. The ARM Cortex-M4 core offers single-cycle Multiply-Accumulate and SIMD instructions and a hardware floating-point unit to support signal processing while the M0 coprocessor handles I/O and digital control processing. The LPC4320FBD144 includes 168 kB of data memory, one High Speed USB 2.0 Host/OTG/Device, advanced configurable peripherals such as the State Configurable Timer (SCT), Serial General Purpose I/O (SGPIO), and SPI Flash Interface (SPIFI) as well as an external memory controller and multiple digital and analog peripherals.
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## Features
* ARM Cortex-M4 processor, running at frequencies of up to 204 MHz
* ARM Cortex-M4 built-in Memory Protection Unit (MPU) supporting eight regions
* ARM Cortex-M4 built-in Nested Vectored Interrupt Controller (NVIC)
* Hardware floating-point unit
* Non-maskable Interrupt (NMI) input
* JTAG and Serial Wire Debug (SWD)
* System tick timer
* ARM Cortex-M0 co-processor running at frequencies of up to 204 MHz
* 200 kB SRAM for code and data use
* Two 32 kB SRAM blocks with separate bus access
* 32 kB ROM containing boot code and on-chip software drivers
* 32 bit One-Time Programmable (OTP) memory for customer use
* Serial GPIO (SGPIO) interface
* State Configurable Timer (SCT) subsystem on AHB
* Quad SPI Flash Interface (SPIFI) with four lanes and up to 40 MB per second
* One High-speed USB 2.0 Host/Device/OTG interface with DMA support
* One 550 UART with DMA support and full modem interface
* Three 550 USARTs with DMA and synchronous mode support
* One C_CAN 2.0B controller with one channel
* Two SSP controllers with FIFO and multi-protocol support
* One SPI controller
* One Fast-mode Plus I2C-bus interface with rates of up to 1 Mbit/s
