Yamaha YM2413

Yamaha YM2413

The YM2413, a.k.a. OPLL, is an FM synthesis sound chip manufactured by Yamaha Corporation. It is related to Yamaha's OPL family of FM synthesis chips, and is a cost-reduced version of the YM3812 (OPL2).

Technical details

Based on the YM3812, it features nine concurrent FM channels with two operators per channel. Common to the OPL family, it features a percussion mode (or rhythm mode) that turns the last three channels into percussion/rhythm channels to produce 5 percussion/rhythm sounds.

To make the chip cheaper to manufacture, many of the internal registers were removed. The result of this is that the YM2413 can only play one user-defined instrument at a time; the other 15 instrument settings are hard-coded and cannot be altered by the user. There were also some other cost-cutting modifications: the number of waveforms was reduced to two, additive mode was removed along with the 6-bit carrier volume control (channels instead have 15 levels of volume), and the channels are not mixed using an adder; instead, the chip's built-in DAC uses time-division multiplexing to play short segments of each channel in sequence, which was also done in the YM2612 much later.

Applications

The YM2413 was used in many devices, including:

  • the FM Sound Unit add-on for the Sega Mark III sold exclusively in Japan, that improved the sound quality of all compatible games. The Japanese model of the Sega Master System came with this add-on built-in;
  • an arcade board design produced by SNK and Alpha Denshi in the late 1980s for a number of their games, including Time Soldiers, Sky Soldiers, and Gang Wars;
  • the Atari Games Rampart arcade game;
  • the Yamaha PSS-170 and PSS-270 keyboards in 1986;
  • the Yamaha SHS-10 shoulder keyboard in 1987, and the Yamaha PSS-140 and Yamaha SHS-200 in 1988;
  • the Yamaha PSR-6 keyboard in 1988;
  • several sound enhancement cartridges for MSX computers. It is also built into select MSX2 and MSX2+ systems, and all MSX Turbo R machines, as part of the MSX-Music standard; and[1]
  • JTES Japanese teletext receivers.[2]

Variants and clones

  • Yamaha YM2420 (OPLL2) is a variant with slightly changed registers (intentionally undocumented to avoid hardware piracy), used in Yamaha's own home keyboards. It has the same pinout and built-in FM patches as the YM2413, but several registers have parts of the bit order reversed.
  • Yamaha DS1001 (Konami VRC7 MMC) contains a YM2413 derivative, used on the Family Computer game Lagrange Point, as well as on a few redemption arcade machines. It has 6 FM channels instead of 9, lacks the rhythm channels, and has a different set of built in FM patches from the YM2413.
    • An undocumented debug mode allows the DS1001 (VRC7) to be run in YM2413 mode, complete with YM2413-compatible control signals and 3 extra FM channels (which were also used for the rhythm channels), while retaining the same patches used in the DS1001 (VRC7).
  • Yamaha YM2423 (OPLL-X) is another YM2413 derivative. It has the same pinout and register set as the YM2413, but a different set of built in FM patches.
  • Yamaha YMF281 (OPLLP) is a later YM2413 derivative, possibly intended for pachinko or pachislot machines. It has the same pinout and register set as the YM2413, but a different set of built in FM patches.
  • Yamaha YM2413B and YMF281B are low power variants of YM2413 and YMF281 respectively. These variants also reduced the crossover distortion of the built-in DAC. A lower power consumption indicates that these variants may be made using a CMOS process.
  • Yamaha FHB013 is a later YM2413 derivative, using a 2-metal CMOS process instead of NMOS. It has the same pinout and register set as the YM2413, but a different set of built in FM patches. It may be the same chip as the YMF281B above, as it supposedly has the same patches. It may also be directly derived from the YM2413B, as the YMF281B was based off of the YM2413B with different patches but also using the same CMOS process.
  • UMC U3567 is a 100% software compatible chip with a slightly different pinout, requiring a pin-to-pin adapter in order to be used on a YM2413 socket.
  • UMC UM3567 is a 100% software compatible chip, with the same pinout as the U3567 but has a slightly enhanced DAC output. It requires the same pin-to-pin adapter, but the different DAC output will also require the two pull-down resistors of the audio output pins to be removed from the mainboard.
  • K-663A (sometimes known as the K-663 or K-633A) is a 100% software compatible chip, used on the Korean Family Computer karaoke game Family Noraebang, as well as on a few arcade machines.[3] It is based on the UM3567, using the same pinouts and an enhanced DAC output. As with the U3567 and UM3567 chips, a pin-to-pin adapter is required to use the YM2413 sockets. Like the UM3567, the different DAC output will also require the two pull-down resistors of the audio output pins to be removed from the mainboard.

See also

References

  1. ^ MSX-MUSIC
  2. ^ "Japanese teletext receivers". Archived from the original on 2021-12-02.
  3. ^ "Family Noraebang (패밀리 노래방) - NESdev BBS".

Read other articles:

2011 single by Jay ParkDemonSingle by Jay ParkReleasedSeptember 5, 2011 (2011-09-05) (South Korea)Recorded2010GenreHip hop, R&BLength3:09LabelYedang CompanyLOEN Entertainment (distribution)Songwriter(s)Teddy Riley, Jay ParkProducer(s)Teddy RileyJay Park English singles chronology Speechless (2010) Demon (2011) Music videoDemon on YouTube Demon is a song by Korean-American singer, Jay Park. It was first released as a digital single on September 5, 2011 in South Korea,&#...

 

 

1979–80 National Football LeagueLeague detailsDatesOctober 1979 – 27 April 1980League championsWinnersCork (3rd win)CaptainChristy RyanManagerBilly MorganLeague runners-upRunners-upKerryCaptainJimmy DeenihanManagerMick O'Dwyer← 1978–79 1980–81 → The 1979–80 National Football League was the 49th staging of the National Football League (NFL), an annual Gaelic football tournament for the Gaelic Athletic Association county teams of Ireland. Cork defeated Kerry in an all-Mun...

 

 

KiCad Dessin d'un circuit imprimé dans Pcbnew. Informations Développé par Jean-Pierre Charras Première version 1992 Dernière version 8.0.1 (13 mars 2024)[1],[2] Dépôt gitlab.com/kicad Écrit en C++ Interface WxWidgets Système d'exploitation Linux, Microsoft Windows, macOS et BSD Formats lus Gerber, VRML, Fichier STEP (en), IGES, KiCad Module (d), KiCad PCB (d), KiCad Project (d), KiCad part Library (d), KiCad EESchema Netlist (d), KiCad Module library (d), KiCad pcbnew PCB layout (d)...

American political office Treasurer of IndianaSeal of IndianaIncumbentDan Elliottsince January 9, 2023Term length4 yearsInaugural holderDaniel Crosby LaneNovember 7, 1816FormationIndiana Constitution1816Salary$94,501.42Websitehttp://www.in.gov/tos/ The Indiana Treasurer of State is a constitutional and elected office in the executive branch of the government of Indiana. The treasurer is responsible for managing the finances of the U.S. state of Indiana. The position was filled by appoint...

 

 

Single by Rae Sremmurd featuring Travis Scott CloseSingle by Rae Sremmurd featuring Travis Scottfrom the album SR3MM ReleasedApril 18, 2018GenreTrapLength3:13LabelEarDrummersInterscopeSongwriter(s)Khalif BrownAaquil BrownJacques WebsterMichael WilliamsSamuel GloadeProducer(s)Mike Will Made It30 RocRae Sremmurd singles chronology Chanel (2018) Close (2018) Hands On Me (2018) Travis Scott singles chronology Krippy Kush (Travis Scott Remix)(2017) Close(2018) Love Hurts(2018) Music videoC...

 

 

尊敬的拿督斯里莫哈末·沙布Mohamad bin Sabu国会议员2018年9月24日末沙布在五角大楼与美国国防部长詹姆斯·马蒂斯会面农业及食品工业部部长现任就任日期2022年12月3日君主最高元首苏丹阿都拉最高元首苏丹依布拉欣·依斯迈首相安华·依布拉欣副职陈泓缣(2022年至2023年)亚瑟古律(2023年至今)前任羅納建迪国防部长任期2018年5月21日—2020年2月24日君主最高元首端姑莫哈末五世...

 本表是動態列表,或許永遠不會完結。歡迎您參考可靠來源來查漏補缺。 潛伏於中華民國國軍中的中共間諜列表收錄根據公開資料來源,曾潛伏於中華民國國軍、被中國共產黨聲稱或承認,或者遭中華民國政府調查審判,為中華人民共和國和中國人民解放軍進行間諜行為的人物。以下列表以現今可查知時間為準,正確的間諜活動或洩漏機密時間可能早於或晚於以下所歸�...

 

 

Den här artikeln handlar om det gemensamma skriftspråket. För det officiella språket i Kina och Singapore, se Standardkinesiska. För andra språk som talas i Kina, se Språk i Kina. Om inget annat anges är kinesiskan i denna artikel skriven i ordningen traditionell kinesiska / förenklad kinesiska / pinyin. Om tecknen är densamma skrivs de endast en gång. Kinesiska汉语 / 漢語 ; 中文Uttal[xân.ỳ][hɔ̄ːn.jy̬ː][ʈʂʊ́ŋ.wə̌n]Talas i&...

 

 

مارشال نابيير (بالإنجليزية: Marshall Napier)‏  معلومات شخصية اسم الولادة (بالإنجليزية: James Marshall Napier)‏  الميلاد 22 أكتوبر 1951   لور هوت  تاريخ الوفاة 14 أغسطس 2022 (70 سنة) [1]  سبب الوفاة سرطان الدماغ  [لغات أخرى]‏[1]  مواطنة نيوزيلندا أستراليا  الأولاد جيسي�...

У этого термина существуют и другие значения, см. Новопавловка. ДеревняНовопавловка 52°00′25″ с. ш. 37°59′08″ в. д.HGЯO Страна  Россия Субъект Федерации Липецкая область Муниципальный район Воловский Сельское поселение Липовский сельсовет История и география Ча�...

 

 

Russian term for appetizers served before meals For the Romanian vegetable spread, see Zacuscă. ZakuskiCourseHors d'oeuvre or snackPlace of originEurasiaRegion or stateEastern Europe, Northern Europe, AsiaMain ingredientsCold cuts, cured fishes, mixed salads, pickled vegetables, kholodets, pirozhki, hard cheeses, caviar, roe, canapés, open sandwiches, breads  Media: Zakuski Zakuski (plural from Russian: закуски [zɐˈkuskʲɪ]; singular zakuska from закуска; P...

 

 

Canadian military flying unit 427 Special Operations Aviation Squadron427e Escadron d'opérations spéciales d'aviation (French)Active 1944–1946 1952–1970 1971–present CountryCanadaTypeSpecial operations helicopter squadronPart ofCanadian Special Operations Forces CommandGarrison/HQCFB PetawawaNickname(s)Lion SquadronMotto(s)Ferte manus certas (Latin for 'Strike with a sure hand')Engagements World War II Operation Deliverance War in Afghanistan Operation Impact Decorat...

Sporting event delegationGuam at theOlympicsIOC codeGUMNOCGuam National Olympic CommitteeWebsitewww.oceaniasport.com/guam/Medals Gold 0 Silver 0 Bronze 0 Total 0 Summer appearances1988199219962000200420082012201620202024Winter appearances19881992–2022 This is a list of flag bearers who have represented Guam at the Olympics.[1][2] Flag bearers carry the national flag of their country at the opening ceremony of the Olympic Games. # Event year Season Flag bearer Sport 10 2020 ...

 

 

عمر طوسون   معلومات شخصية الميلاد 8 سبتمبر 1872   الإسكندرية  الوفاة 2 يناير 1944 (71 سنة)   القاهرة  مواطنة الدولة العثمانية (1872–1914) السلطنة المصرية (1914–1922) المملكة المصرية (1922–1944)  عضو في مجمع اللغة العربية بدمشق  عدد الأولاد 4   الأب محمد طوسون باشا  أقرباء ...

 

 

В Википедии есть статьи о других людях с такой фамилией, см. Романов; Романов, Николай. Николай Яковлевич Романов Дата рождения 16 февраля 1908(1908-02-16) Место рождения Москва, Российская империя Дата смерти 10 сентября 1991(1991-09-10) (83 года) Место смерти Москва, СССР Гражданство  С�...

Aglientucomune(IT) Aglientu(SDN) Santu Francìscu di l'Aglièntu Aglientu – Veduta LocalizzazioneStato Italia Regione Sardegna Provincia Sassari AmministrazioneSindacoMarco Demuro (lista civica) dal 29-5-2023 TerritorioCoordinate41°04′43.8″N 9°06′46.6″E41°04′43.8″N, 9°06′46.6″E (Aglientu) Altitudine420 m s.l.m. Superficie148,19 km² Abitanti1 187[1] (31-2-2024) Densità8,01 ab./km² FrazioniBaia Vignola, Campesi, Por...

 

 

Former railway station in England Chambers Crossing HaltStation site in 2008.General informationLocationnr. Luddington, Stratford-on-AvonEnglandPlatforms2Other informationStatusDisusedHistoryOriginal companyGreat Western RailwayKey dates17 October 1904Opened14 July 1916Closed Chambers Crossing Halt railway station was a timber-framed railway halt on the Stratford-upon-Avon to Cheltenham section of the Honeybourne Line. The station was located two miles south-west of Stratford upon Avon. The s...

 

 

Regency in Jambi, IndonesiaMerangin Regency Kabupaten MeranginRegency Coat of armsMotto(s): Tali Undang Tambang Teliti (Strap of Penghulu tribe and rope of Batin tribe; another meaning: tie in the rules, explore carefully)CountryIndonesiaProvinceJambiRegency seatBangkoArea • Total7,679.0 km2 (2,964.9 sq mi)Population (mid 2023 estimate)[1] • Total368,389 • Density48/km2 (120/sq mi)Time zoneUTC+7 (WIB)Websitemeranginkab....

Frontière entre le Laos et la Thaïlande Soldats laotiens contrôlant des voyageurs à proximité du pont de l'amitié lao-thaïlandaise. Caractéristiques Délimite Laos Thaïlande Longueur totale 1 754 km Particularités fluviale pour la plus grande longueur Historique Création 1893 modifier  Frontière entre le Laos et la Thaïlande au Phu Chi Dao. Février 2019. La frontière entre le Laos et la Thaïlande est formée par le Mékong sur la plus grande partie de sa longue...

 

 

This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: Jo Valentine, Baroness Valentine – news · newspapers · books · scholar · JSTOR (August 2013) (Learn how and when to remove this message) Official ...