boards: nxp: frdm_mcxa156: update doc index

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FRDM-MCXA156 are compact and scalable development boards for rapid prototyping of

MCX A15X MCUs. They offer industry standard headers for easy access to the

MCUs I/Os, integrated open-standard serial interfaces, external flash memory and

an on-board MCU-Link debugger. MCX N Series are high-performance, low-power

microcontrollers with intelligent peripherals and accelerators providing multi-tasking

capabilities and performance efficiency.

MCX A144/5/6 A154/5/6 MCUs. They offer industry standard headers for easy access

to the MCU's I/Os, integrated open-standard serial interfaces, external flash

memory and an on-board MCU-Link debugger. Additional tools like our Expansion

Board Hub for add-on boards and the Application Code Hub for software examples

are available through the MCUXpresso Developer Experience.

Hardware

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- MCX-A156 Arm Cortex-M33 microcontroller running at 96 MHz

- 1MB dual-bank on chip Flash

- 128 KB RAM

- USB high-speed (Host/Device) with on-chip HS PHY. HS USB Type-C connectors

- 2x FlexCAN with FD, 2x I3Cs, 2x SAI

- USB full-speed with on-chip FS PHY. USB Type-C connectors

- 1x FlexCAN with FD, 1x I3Cs

- On-board MCU-Link debugger with CMSIS-DAP

- Arduino Header, FlexIO/LCD Header, SmartDMA/Camera Header, mikroBUS