 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SH7721 Datasheet(PDF) 465 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
SH7721 Datasheet(HTML) 465 Page - Renesas Technology Corp |
|
|
465 / 1524 page  Section 9 Bus State Controller (BSC) Rev. 3.00 Jan. 18, 2008 Page 403 of 1458 REJ09B0033-0300 correctly, the slave device must be designed to release the bus mastership within the refresh interval time. To achieve this, the LSI instructs the REFOUT pin to request the bus mastership while the SDRAM waits for the refresh. The LSI asserts the REFOUT pin until the bus mastership is received. If the slave releases the bus, the LSI acquires the bus mastership to execute the SDRAM refresh. The bus release by the BREQ and BACK signal handshaking requires some overhead. If the slave has many tasks, multiple bus cycles should be executed in a bus mastership acquisition. Reducing the cycles required for master to slave bus mastership transitions streamlines the system design. CKIO A25 to A0 CSn Other bus control signals D31 to D0 BREQ BACK Figure 9.45 Bus Arbitration Timing |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
