The Serial Port, Dual Serial Port (Issue 1)
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An Issue 1 Dual Serial board which has the power distribution modification applied. It has ROM version B0.37 These boards have a maximum speed of 115,200 bps. These boards have a maximum speed of 230400 bps. Later serial cards were produced by Atomwide . Detail of the Atomwide card is HERE . Issue 1 & 2 boards only work in RiscPCs if the EPROM is removed and the driver softloaded. The latest drivers for Issue 1 & 2 cards is HERE . Further details of the Dual Serial Board and the driver software are available on Hugo Fiennes web site. Date : 1992Manufacturer : P.C. Arnold Technical Services Physical Description : Expansion board This exhibit has a reference ID of CH49141. Please quote this reference ID in any communication with the Centre for Computing History. |
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