XA-H3

INTEGRATED CIRCUITS XA-H3 CMOS 16-bit highly integrated microcontroller Preliminary specification IC28 Data Handbook 1999 Sep 24 Philips Semiconductors Philips Semiconductors Preliminary specification CMOS 16-bit highly integrated microcontroller XA-H3 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 UARTs help solve I/O intensive tasks with a minimum of CPU load. The XA-H3 feature set is a subset of the XA-H4 (see Table 1). The XA-H3/H4 devices are members of the Philips XA (eXtended Architecture) family of high performance 16-bit microcontrollers. The XA-H3 and XA-H4 are designed to significantly minimize the need for external components. FEATURES Large Memory Support (up to 6 MB external) 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 Timing – each of 6 chip selects has individual programmable bus timing. 32 Programmable General Purpose I/O Pins Four UARTs with 230.4 kbps capability Eight DMA Channels Dynamic Bus Sizing – each of 6 Chip Selects can be programmed for 8-bi...