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*/

==== Table of Contents ====

[[#kiorc_exploring_kio_for_rc2014_bus|KIORC, Exploring KIO for RC2014 Bus]]

[[#introduction|Introduction]]

[[#features|Features]]

[[#design_info|Design Info]]

[[#kiorc_installed_in_various_hardware_platforms|KIORC Installed in Various Hardware Platforms]]

====== KIORC, Exploring KIO for RC2014 Bus ======

===== Introduction =====

KIORC is designed for RC2014 backplane using the integrated SIO/CTC/PIO Z84C90. It also has battery-backed RTC based on DS1302

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=bb4862&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/kiorc/dsc_44670610.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=600&h=335&tok=b225c9&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fkiorc%2Fdsc_44670610.jpg?600x335|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_kiorc_dsc_44670610.jpg}}]]

===== Features =====

Z84C90 rated at 12MHz

DS1302 RTC

Altera EPM7032S glue logic

Base address of KIO is 0x80, RTC is located at 0xC0

RC2014 bus compatible

Turbo charge RC2014 system performance by 2X or more

50mmX100mm 2-layer pc board

===== Design Info =====

<del>[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_scm.pdf|Schematic]]</del> [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_scm.pdf|]] ←1/28/24 Rev0 schematic is replaced

[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_rev1_scm.pdf|Schematic Rev1]] is same as rev0 schematic with engineering changes included

Gerber <del>[[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_x2_rev0.zip|photoplots rev0]]</del> ← 11/17/23 rev0 pcb is replaced

Gerber [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_gerber_rev1.zip|photoplot rev1]], replacing the rev0 pc board. The design remains the same, but all engineering changes are updated

Altera [[https://retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:kiorc:kiorc_cpld_at0x80_rtc_at_0xc0.zip|CPLD design file]]

[[builderpages:plasmo:kiorc:rev0ec|Engineering change]] for Rev0 PC board only. There are no engineering changes for Rev1 pc board.

[[builderpages:plasmo:kiorc:memory_map|Memory map]] of KIORC

Bill of Materials

===== KIORC Installed in Various Hardware Platforms =====

[[builderpages:plasmo:kiorc:kiorc_hardware:rc2014_512kramrom|KIORC with 512K RAM/ROM board and Z80]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=207995&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/kiorc/kiorc_hardware/dsc_71001128.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=200&h=128&tok=ec825a&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fkiorc%2Fkiorc_hardware%2Fdsc_71001128.jpg?200x128|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_kiorc_kiorc_hardware_dsc_71001128.jpg}}]]

[[builderpages:plasmo:kiorc:kiorc_hardware:frr512_z80|KIORC with FRR512K and Z80]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=a28a5d&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/kiorc/kiorc_hardware/dsc_71071129.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=200&h=109&tok=7ec1cb&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fkiorc%2Fkiorc_hardware%2Fdsc_71071129.jpg?200x109|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_kiorc_kiorc_hardware_dsc_71071129.jpg}}]]

[[builderpages:plasmo:kiorc:kiorc_hardware:sc108|KIORC with SC108]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=28f10c&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/kiorc/kiorc_hardware/dsc_71121130.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=200&h=135&tok=8c9870&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fkiorc%2Fkiorc_hardware%2Fdsc_71121130.jpg?200x135|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_kiorc_kiorc_hardware_dsc_71121130.jpg}}]]

[[builderpages:plasmo:kiorc:kiorc_hardware:sc114|KIORC with SC114 and CF interface board]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=b7333d&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/kiorc/kiorc_hardware/dsc_71161203.jpg|{{https://retrobrewcomputers.org/lib/exe/fetch.php?w=200&h=141&tok=2852ba&media=https%3A%2F%2Fwww.retrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fplasmo%2Fkiorc%2Fkiorc_hardware%2Fdsc_71161203.jpg?200x141|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_kiorc_kiorc_hardware_dsc_71161203.jpg}}]]

[[builderpages:plasmo:kiorc:kiorc_hardware:z80mb64|KIORC with FRR512K and Z80MB64]]

[[builderpages:plasmo:kiorc:kiorc_hardware:simple80|KIORC with Simple80]]

[[builderpages:plasmo:kiorc:kiorc_hardware:kiorc_zrc|KIORC with ZRC]]

[[builderpages:plasmo:kiorc:kiorc_hardware:kiorc_zzrc|KIORC with ZZRC rev1.2]]–breaking the sound barrier!