Описание
The MB9B120J is highly integrated 32-bit microcontrollers dedicated for embedded controllers with low-power consumption mode and competitive cost. These is based on the ARM Cortex-M3 Processor with on-chip Flash memory and SRAM, and have peripheral functions such as various timers, ADCs and Communication Interfaces (UART, CSIO, I2C, LIN).
- 32-bit ARM Cortex-M3 Core
- Processor version: r2p1
- Up to 72 MHz Frequency Operation
- Integrated Nested Vectored Interrupt Controller (NVIC): 1 NMI (non-maskable interrupt) and 48 peripheral interrupts and 16 priority levels
- 24-bit System timer (Sys Tick): System timer for OS task management
- On-chip Memories [Flash memory]
- 64 Kbytes
- Read cycle: 0 wait-cycle
- Security function for code protection [SRAM] This Series on-chip SRAM is composed of two independent SRAM (SRAM0, SRAM1). SRAM0 is connected to I-code bus and D-code bus of Cortex-M3 core. SRAM1 is connected to System bus.
- SRAM0: 4 Kbytes
- SRAM1: 4 Kbytes
- Multi-function Serial Interface (Max four channels)
- 2 channels with 16steps×9-bit FIFO (ch.0/ch.1), 2 channels without FIFO (ch.2/ ch.5)
- Operation mode is selectable from the followings for each channel.
- UART
- CSIO
- LIN
- I2C
- DMA Controller (Four channels): The DMA Controller has an independent bus from the CPU, so CPU and DMA Controller can process simultaneously.
- A/D Converter (Max 8channels)
- Base Timer (Max eight channels)
- General-Purpose I/O Port
- Dual Timer (32-/16-bit Down Counter)
- Quadrature Position/Revolution Counter (QPRC) (One channel)
