 |
Motore di ricerca datesheet componenti elettronici |
|
|
Motore di ricerca datesheet componenti elettronici |
|
H8S/2218 Scheda tecnica(PDF) 244 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
H8S/2218 Scheda tecnica(HTML) 244 Page - Renesas Technology Corp |
|
|
244 / 750 page  Section 7 DMA Controller (DMAC) Rev.6.00 Jun. 03, 2008 Page 196 of 698 REJ09B0074-0600 7.4.8 Basic DMAC Bus Cycles An example of the basic DMAC bus cycle timing is shown in figure 7.14. In this example, word- size transfer is performed from 16-bit, 2-state access space to 8-bit, 3-state access space. When the bus is transferred from the CPU to the DMAC, a source address read and destination address write are performed. The bus is not released in response to another bus request, etc., between these read and write operations. As with CPU cycles, DMA cycles conform to the bus controller settings. DMAC cycle (1-word transfer) CPU cycle CPU cycle T 1 T 2 T 1 T 2 T 3 T 1 T 2 T 3 Source address Destination address φ Address bus RD HWR LWR Figure 7.14 Example of DMA Transfer Bus Timing The address is not output to the external address bus in an access to on-chip memory or an internal I/O register. |
|
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
