PLATFORM SOLUTIONS ARM REFERENCE PLATFORM

KA 32bits SoC Reference Platform for Developing Combo WiFi SD Card Solution

 

Summary

Powered by unique ASIC approach, KeyASIC’s leading edge 32bits CPU SOC reference platform is an ideal engineering tool to develop a “combo” SD card which can integrate one SDIO plus one SD memory functions into a regular SD form factor card solution.

Features

Microprocessor and General Architecture

  • High performance 32bits CPU core with clock rate of 200MHz
  • Interrupt Controller
  • Internal AMBA (Advanced Microcontroller Bus Architecture) (AMBA2.0, AHB/APB)
  • DMA Controller to manage accesses to external memory
  • JTAG support for debug

Memory Subsystem

  • SDRAM Controller for 64MB external SDRAM, supporting 16-bit SDRAM interface for single-chip SDRAM implementation at 166MHz
  • Auto-load Flash Controller for external NOR Flash – can support up to 32MBytes of NOR Flash
  • SSI interface can program to NOR-Flash control for software to read/write NOR-Flash.

SD Interface

  • One SD2.0/SDHC card interface for SD, mini SD and micro SD card
  • One SDIO Host
  • One SD Slave

General Peripherals

  • Pulse Width Modulation (PWM) / Timer: for control the buzzer.
  • 8 GPIO ports
  • Watch Dog Timer

Serial Interfaces

  • Universal Asynchronous Receiver/Transmitter (UART)
  • Serial Synchronous Interface(SSI)

System Management

  • Little Endian format support
  • System operating clock generation
  • Power management

BSP

  • OS: Linux 2.6.32
  • Driver: SD2.0 Device, SDIO Host, SDHC Host

Operational Condition

  • IO Voltage: 2.7 ~ 3.3V, Compliant with SD card Supply Voltage Specification
  • Operation Temperature: -40 ~ +85 ℃

Block Diagram