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J22: (Chip enable)
This jumper is not installed in amateur units. If the clock
chip is not installed, this jumper must be installed to provide the chip enable sig-
nals.
J23: (RAM voltage)
This jumper is not installed in amateur units. If the clock
chip is not installed, this jumper must be installed to provide an enable signal to
the RAM chip.
J24: (Internal Regulator output voltage select)
When connected, internal volt-
age is +3.3 volts; when not connected, internal voltage is +5 volts. Default: not
installed (not connected). NOTE: the Dallas DS1215 real-time clock chip in the
KPC-9612 Plus is not rated for +3.3 volt operation, so for low voltage operation,
the clock chip must be removed and pins at J22 and J23 connected (i.e., J22 and
J23 ON).
Appendix B: Advanced Information
KPC-9612 Plus Jumpers
User’s Guide
306
KPC-9612 Plus v 8.2
Содержание KPC-9612 Plus
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Страница 78: ...Installing Your KPC 9612 Plus User s Guide 62 KPC 9612 Plus v 8 2...
Страница 122: ...Getting Started Other Topics User s Guide 106 KPC 9612 Plus v 8 2...
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Страница 301: ...Command Reference KPC 9612 Plus v 8 2 285 User s Guide...
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