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radionic: Yet another clock note (nw)

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AJR 2018-03-12 14:10:31 -04:00
parent 093268232b
commit aa20b2e580
1 changed files with 1 additions and 0 deletions
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src/mame/drivers/trs80.cpp
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@ -722,6 +722,7 @@ MACHINE_CONFIG_START(trs80_state::radionic)
model1(config); model1(config);
MCFG_CPU_MODIFY("maincpu") MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_CLOCK(12_MHz_XTAL / 6) // or 3.579MHz / 2 (selectable?) MCFG_CPU_CLOCK(12_MHz_XTAL / 6) // or 3.579MHz / 2 (selectable?)
// Komtek I "User Friendly Manual" calls for "Z80 running at 1.97 MHz." Schematics mark XTAL as 12 MHz, but is that rounded off?
MCFG_CPU_PERIODIC_INT_DRIVER(trs80_state, nmi_line_pulse, 12_MHz_XTAL / 12 / 16384) MCFG_CPU_PERIODIC_INT_DRIVER(trs80_state, nmi_line_pulse, 12_MHz_XTAL / 12 / 16384)
MCFG_SCREEN_MODIFY("screen") MCFG_SCREEN_MODIFY("screen")