Electronic Components Datasheet Search |
|
SNC21085A Datasheet(PDF) 5 Page - SONiX Technology Company |
|
SNC21085A Datasheet(HTML) 5 Page - SONiX Technology Company |
5 / 11 page SNC21085A 1-CH H.Q. Speech Controller Ver1.1 April 28, 2009 5 5. FUNCTION DESCRIPTIONS 5.1 Oscillator System clock define 2 MHz, the source provided by external resistor ring oscillator. 5.2 ROM SNC21085A contains a substantial maximum 256K words (10-bit) internal ROM, which is shared by program and resource data. Program, voice and data are shared within this same 256K words ROM. 5.3 RAM SNC21085A contains maximum 80 nibble RAM (80 x 4-bits). The 80 nibble RAM is divided into eight pages (page 0 to page 4, 16 nibble RAM on each page). In our programming structure, users can use the instructions, PAGE n (n=0 to 4) to switch and indicate the RAM page. Besides, users can use direct mode, M0 ~ M15 in the data transfer type instructions, to access all 16 nibbles of each page. 5.4 Power Down Mode “End” instruction makes the IC entering into Stop Mode will stop the system clock for power savings (<3uA @VDD=3V and <6uA @VDD=4.5V.) Any valid data transition (L H or H L) occurring on any IO pin can be used to start the system clock and return to normal operating mode. 5.5 Sampling Rate Counter The unique sampling rate counter is designed in voice channel to be able to play diverse voices at different sample playing rates. The playing rate can be adaptively set up among from the wide ranges of 2.5KHz to 20KHz. This architecture yields a high-quality voice synthesis that sounds very close to its original source when played through the same amplifier and speaker circuitry. 5.6 Auto Repeat Function A voice section can be repeated by the built-in special hardware of SNC21085A without any software effort. The function activated by setting the corresponding bit of a control register. Once the control register was setting, the channel will continue to play the voice section (the Next Section). 5.7 I/O Ports There are three 4-bit I/O ports P1, P2 and P3. Any I/O can be individually programmed as either input pull low or output. Any valid data transition (H L or L H) of P1, P2 and P3 can reactivate the chip when it is in power-down stage. |
Similar Part No. - SNC21085A |
|
Similar Description - SNC21085A |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |