 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
H8/3002 Datasheet(PDF) 149 Page - Renesas Technology Corp |
|
|
|||||||||||||||||||||||||||||
H8/3002 Datasheet(HTML) 149 Page - Renesas Technology Corp |
|
|
149 / 700 page  Figure 6-19 shows the timing when the bus right is requested by an external bus master during a read cycle in a two-state-access area. There is a minimum interval of two states from when the BREQ signal goes low until the bus is released. Figure 6-19 Interconnections with Memory (Example) ø Data bus (D to D ) AS HWR BREQ BACK RD , LWR , 15 0 T1 T2 Address 2 1 3456 High CPU cycles External bus released CPU cycles Minimum 2 cycles High-impedance High-impedance High-impedance High-impedance 1 2 3 4, 5 6 Low signal is sampled at rise of T state. signal goes low at end of CPU read cycle, releasing bus right to external bus master. pin continues to be sampled while bus is released to external bus master. High signal is sampled twice consecutively. signal goes high, ending bus-release cycle. BREQ BREQ BREQ BREQ BACK 1 Address bus 134 |
|
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 |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
