 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
ST92196A датащи(PDF) 113 Page - STMicroelectronics |
|
|
|||||||||||||||||||||||||||||
ST92196A датащи(HTML) 113 Page - STMicroelectronics |
|
|
113 / 268 page  113/268 - OSDRAM CONTROLLER OSDRAM CONTROLLER (Cont’d) 8.4.3 OSDRAM Controller Reset Configuration During and after a reset, the OSDRAM access is disabled. When the OSDRAM controller is software disa- bled, it will: 1. Complete the current slot. 2. Complete any pending write operation (a few slots may elapse). 3. Switch off any OSDRAM interface activity. 8.4.3.1 OSDRAM Controller Running Modes 2 control bits called “OSDE” (OSD Enable) and “DION” (Display ON) are used to enable the OS- DRAM controller. Both are also shared by the Dis- play controller. These 2 bits are located in the OSDER register. This register is described in the On Screen Display Controller Chapter. 8.4.3.2 CPU Slowdown on OSDRAM access As described above, the OSDRAM controller puts priority on TV real time constraints and may slow- down the CPU (through “wait” cycle insertion) when any OSDRAM access is requested. The ef- fective duration of the CPU slowdown is a complex function of the OSDRAM controller working mode and of the respective PIXCLK frequency (OS- DRAM frequency) and the Core INTCLK frequen- cy. 8.4.3.3 OSDRAM Mapping The OSDRAM is mapped in the memory space, segment 22h, starting from address 0000h to ad- dress 017Fh (384 bytes). The OSDRAM mapping is described in the On Screen Display Controller Chapter. |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю 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 |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
