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clock verified on pcb

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This commit is contained in:
Nicola Salmoria 2008-05-28 08:07:01 +00:00
parent 5f14205535
commit 13c6f7123f
1 changed files with 1 additions and 2 deletions
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3
src/mame/drivers/zaccaria.c
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@ -686,8 +686,7 @@ static MACHINE_DRIVER_START( zaccaria )
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)
/* There is no xtal, the clock is obtained from a RC oscillator as shown in the TMS5220 datasheet (R=100kOhm C=22pF) */ /* There is no xtal, the clock is obtained from a RC oscillator as shown in the TMS5220 datasheet (R=100kOhm C=22pF) */
/* 565kHz measured on pin 6, however this likely interfered with the RC oscillator. */ /* 162kHz measured on pin 3 20 minutesa fter power on. Clock would then be 162*4=648kHz. */
/* Waiting for proper measure to be taken on pin 3. */
MDRV_SOUND_ADD(TMS5200, 640000) MDRV_SOUND_ADD(TMS5200, 640000)
MDRV_SOUND_CONFIG(tms5220_interface) MDRV_SOUND_CONFIG(tms5220_interface)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80)