DESCRIPTION
The powerful 16-bit XA CPU core and rich feature set make the XA-H3 and XA-H4 devices ideal for high-performance real-time applications such as industrial control and networking. By supporting of up to 32 MB of external memory, these devices provide a low-cost solution to embedded applications of any complexity. Features like DMA, memory controller and four advanced USARTs help solve I/O intensive tasks with a minimum of CPU load.

FEATURES
• Large Memory Support
• De-multiplexed Address/Data Bus
• Six Programmable Chip Selects
    – Support for Unified Memory – allows easy user modification of all code
    – External ISP Flash support for easy code download
• Dynamic Bus Sizing – each of 6 Chip Selects can be programmed for 8-bit or 16-bit bus.
• Dynamic Bus Timing – each of 6 chip selects has individual programmable bus timing.
• 32 Programmable General Purpose I/O Pins
• Four USARTs with 230.4 kbps capability
• Eight DMA Channels