/* Imported from Wayback Machine Original URL : https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:quadser Snapshot date: 2025-07-15 Generator : wayback-archiver */ ====== QuadSer, Module with 4 Serial Ports for RC2014 ====== ===== Introduction ===== QuadSer is a module based on OX16C954, Quad UART with 128-byte FIFOs. This is link to [[builderpages:plasmo:quadser:rev1|rev1]] of QuadSer. This is link to [[builderpages:plasmo:quadser:rev2:quadser_r2|rev2]] of QuadSer [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=d94359&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/quadser/dsc_55000104.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/quadser/dsc_55000104.jpg?600x274|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_quadser_dsc_55000104.jpg}}]] ===== Features ===== OX16C954 with Quad UART each with 128-byte FIFOs I/O address is hardwired to 0xC0-0xDF For RC2014 bus ===== Design Information ===== [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:quadser:quadser_r0_scm.pdf|Schematic]] Gerber [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:quadser:quadser_r0.zip|Photoplots]] ==== Software ==== Loopback diagnostic software ===== Documentation ===== [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:quadser:ox16c954_quad_uart.pdf|OX16C954]] Data sheet [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:quadser:oxan5-software-examples-for-the-ox16c95x.pdf|Software examples]] for OX16C95x