 |
Motore di ricerca datesheet componenti elettronici |
|
|
Motore di ricerca datesheet componenti elettronici |
|
BT817Q-R Scheda tecnica(PDF) 29 Page - Bridgetek Pte Ltd. |
|
|
|||||||||||||||||||||||||||||
BT817Q-R Scheda tecnica(HTML) 29 Page - Bridgetek Pte Ltd. |
|
|
29 / 59 page  Copyright © Bridgetek Pte Ltd 29 BT817/8 Advanced Embedded Video Engine Datasheet Version 1.1 Document No.: BRT_000302 Clearance No.: BRT#154 4.7 Audio Engine BT817/8 provides mono audio output with sigma-delta modulation through a digital output pin, AUDIO_L. It outputs two audio sources, the sound synthesizer and audio file playback. 4.7.1 Sound Synthesizer A sound processor, AUDIO ENGINE, generates the sound effects from a small ROM library of waves table. To play a sound effect listed in Table 4.3, load the REG_SOUND register with a code value and write 1 to the REG_PLAY register. The REG_PLAY register reads 1 while the effect is playing and returns a ‘0’ when the effect ends. Some sound effects play continuously until interrupted or instructed to play the next sound effect. To interrupt an effect, write a new value to REG_SOUND and REG_PLAY registers; e.g. write 0 (Silence) to REG_SOUND and 1 to PEG_PLAY to stop the sound effect. The sound volume is controlled by register REG_VOL_SOUND. The 16-bit REG_SOUND register takes an 8-bit sound in the low byte. For some sounds, marked "pitch adjust" in the table below, the high 8 bits contain a MIDI note value. For these sounds, a note value of zero indicates middle C. For other sounds the high byte of REG_SOUND is ignored. Value Effect Conti nuous Pitch adjus t Value Effect Conti nuous Pitch adjus t 00h Silence Y N 32h DTMF 2 Y N 01h square wave Y Y 33h DTMF 3 Y N 02h sine wave Y Y 34h DTMF 4 Y N 03h sawtooth wave Y Y 35h DTMF 5 Y N 04h triangle wave Y Y 36h DTMF 6 Y N 05h Beeping Y Y 37h DTMF 7 Y N 06h Alarm Y Y 38h DTMF 8 Y N 07h Warble Y Y 39h DTMF 9 Y N 08h Carousel Y Y 40h harp N Y 10h 1 short pip N Y 41h xylophone N Y 11h 2 short pips N Y 42h tuba N Y 12h 3 short pips N Y 43h glockenspiel N Y 13h 4 short pips N Y 44h organ N Y 14h 5 short pips N Y 45h trumpet N Y 15h 6 short pips N Y 46h piano N Y 16h 7 short pips N Y 47h chimes N Y 17h 8 short pips N Y 48h music box N Y 18h 9 short pips N Y 49h bell N Y 19h 10 short pips N Y 50h click N N 1Ah 11 short pips N Y 51h switch N N 1Bh 12 short pips N Y 52h cowbell N N 1Ch 13 short pips N Y 53h notch N N 1Dh 14 short pips N Y 54h hihat N N |
|
Link URL |
| Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | Collegamento alla scheda tecnica | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Italian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
