Datenblatt-Suchmaschine für elektronische Bauteile |
|
SM1126 Datenblatt(PDF) 10 Page - Nippon Precision Circuits Inc |
|
SM1126 Datenblatt(HTML) 10 Page - Nippon Precision Circuits Inc |
10 / 18 page SM1126 Series NIPPON PRECISION CIRCUITS—10 Write Mode Control Write sequence The SM1126 Series devices can accept data words written to the built-in SRAM to play any melody. The SRAM write sequence is described below. 1. Write the SRAM write command (11011111) to invoke write mode. 2. Write the tempo word (parity check ON/OFF selectable). 3. Write all necessary melody data words (parity check ON/OFF selectable). 4. Write the melody end word (parity check ON/OFF selectable). 5. Optionally, write extra data words (these are ignored). 6. Write the end-of-write command (10111111) to return to play mode. 7. If parity check was ON, write the parity check command (01111111) to perform an error check. The built-in SRAM can store 64 words, so all melody and end words must fit within this limit. Note that the tempo word is not stored in SRAM, but in a separate register. Playback of melodies stored in SRAM begins from the SRAM leading address and continues until the end word is detected, at which point playback contin- ues again from the SRAM leading address. All data in SRAM after the end word is ignored. Figure 9. Write control sequence Input parity check command (01111111) Input end-of-write command (10111111) Write optional invalid data Write end word Write melody word (s) Write tempo word Input write command (11011111) Input end-of-write command (10111111) Write optional invalid data Write end word Write melody word (s) Write tempo word Input write command (11011111) Play mode Play mode Example 1. Parity check selected Example 2. Parity check not selected Write mode |
Ähnliche Teilenummer - SM1126 |
|
Ähnliche Beschreibung - SM1126 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller 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 |