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xtheball: DAC type identification (nw)

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This commit is contained in:
AJR 2018-05-09 17:31:33 -04:00
parent 48dad9990e
commit 47f41ad603
2 changed files with 2 additions and 1 deletions
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1
src/devices/sound/dac.h
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@ -283,6 +283,7 @@ DAC_GENERATOR(MC3410, mc3410_device, dac_word_interface, dac_code_binary<10>, da
DAC_GENERATOR(PCM54HP, pcm54hp_device, dac_word_interface, dac_code_binary<16>, dac_gain_r2r, "PCM54HP", "pcm54hp")
DAC_GENERATOR(UDA1341TS, uda1341ts_device, dac_word_interface, dac_code_twos_complement<16>, dac_gain_r2r, "UDA1341TS", "uda1341ts") // I2C stereo audio codec
DAC_GENERATOR(ZN425E, zn425e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN425E", "zn425e")
DAC_GENERATOR(ZN428E, zn428e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN428E-8", "zn428e")
DAC_GENERATOR(ZN429E, zn429e_device, dac_byte_interface, dac_code_binary<8>, dac_gain_r2r, "ZN429E-8", "zn429e")
// DAC circuits/unidentified chips

2
src/mame/drivers/xtheball.cpp
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@ -330,7 +330,7 @@ MACHINE_CONFIG_START(xtheball_state::xtheball)
/* sound hardware */
SPEAKER(config, "speaker").front_center();
MCFG_DEVICE_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) // unknown DAC
MCFG_DEVICE_ADD("dac", ZN428E, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5)
MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
MCFG_SOUND_ROUTE(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
MACHINE_CONFIG_END