Atomwide 3 Port Hi-speed Serial RS232 Podule Interface. Acorn RISC OS Computers
The ports have 16-byte FIFO buffers on both send and receive channels, greatly easing the interrupt load on the host machine. The complete card is powered from +5v only, using charge pumps to generate the +/- 12v required by the RS232 specification. four-d-pi-shop is the ebay arm of CJE Micro‘s & 4D, who have the world's widest range of Raspberry Pi/RISC OS & Acorn accessories including many from third parties, most of which are famously normally 'In Stock'. Established in 1981, we have always specialised in hobbyist computing and have gained a reputation for a broad knowledge with high quality pre- and post-sales service. CJE & 4D have, over the years, developed many of our own products for Acorn/RISC OS & Raspberry Pi computers. From the first ever 3rd party accessory for BBC Micro Mod.
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