| поискавой системы для электроныых деталей |
|
SH7041A датащи(PDF) 239 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
SH7041A датащи(HTML) 239 Page - Renesas Technology Corp |
|
239 / 923 page ![]() 201 10.5.3 CS Assertion Extension The timing diagram when setting CS assertion extension during address/data multiplex I/O space access is shown in figure 10.19. CS3 AH RD Data WRxx Data Address Ta1 Ta2 Ta3 Ta4 Th T1 T2 Tf Read Write Address output Address output Data output Data input Figure 10.19 Wait Timing in Address/Data Multiplex I/O Space when CS Assertion Extension is Set 10.6 Waits between Access Cycles When a read from a slow device is completed, data buffers may not go off in time to prevent data conflicts with the next access. If there is a data conflict during memory access, the problem can be solved by inserting a wait in the access cycle. To enable detection of bus cycle starts, waits can be inserted between access cycles during continuous accesses of the same CS space by negating the CSn signal once. 10.6.1 Prevention of Data Bus Conflicts For the two cases of write cycles after read cycles, and read cycles for a different area after read cycles, waits are inserted so that the number of idle cycles specified by the IW31–IW00 bits of the |
|
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 |