* like DMA, memory controller and four advanced USARTs 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.
XA-H4
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Single-chip 16-bit microcontroller.
INTEGRATED CIRCUITS XA-H4 Single-chip 16-bit microcontroller Preliminary specification IC28 Data Handbook 1999 Sep 24 Philips Semiconductors Philip.
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