 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
CYDM256B16-55BVXC Datasheet(PDF) 9 Page - Cypress Semiconductor |
|
||||||||||||||||||||||||||||||
CYDM256B16-55BVXC Datasheet(HTML) 9 Page - Cypress Semiconductor |
|
|
9 / 27 page  CYDM064B16 CYDM128B16 CYDM256B16 Document #: 001-00217 Rev. *H Page 9 of 27 Table 4. Input Read Register Operation[12, 15] SFEN CE R/W OE UB LB ADDR IO0–IO1 IO2–IO15 Mode H L H L L L x0000-Max VALID[13] VALID[13] Standard Memory Access L L H L X L x0000 VALID[14] X IRR Read Table 5. Output Drive Register [16] SFEN CE R/W OE UB LB ADDR IO0–IO4 IO5–IO15 Mode HL H X[17] L[13] L[13] x0000-Max VALID[13] VALID[13] Standard Memory Access L L L X X L x0001 VALID[14] X ODR Write[16, 18] L L H L X L x0001 VALID[14] X ODR Read[16] Notes 12. SFEN = VIL for IRR reads 13. UB or LB = VIL. If LB = VIL, then DQ<7:0> are valid. If UB = VIL then DQ<15:8> are valid. 14. LB must be active (LB = VIL) for these bits to be valid. 15. SFEN active when either CEL = VIL or CER = VIL. It is inactive when CEL = CER = VIH. 16. SFEN = VIL for ODR reads and writes. 17. Output enable must be low (OE = VIL) during reads for valid data to be output. 18. During ODR writes data are also written to the memory. Table 6. Semaphore Operation Example Function IO0–IO15 Left IO0–IO15 Right Status No action 1 1 Semaphore free Left port writes 0 to semaphore 0 1 Left Port has semaphore token Right port writes 0 to semaphore 0 1 No change. Right side has no write access to semaphore. Left port writes 1 to semaphore 1 0 Right port obtains semaphore token Left port writes 0 to semaphore 1 0 No change. Left port has no write access to semaphore. Right port writes 1 to semaphore 0 1 Left port obtains semaphore token Left port writes 1 to semaphore 1 1 Semaphore free Right port writes 0 to semaphore 1 0 Right port has semaphore token Right port writes 1 to semaphore 1 1 Semaphore free Left port writes 0 to semaphore 0 1 Left port has semaphore token Left port writes 1 to semaphore 1 1 Semaphore free [+] Feedback |
Similar Part No. - CYDM256B16-55BVXC |
|
Similar Description - CYDM256B16-55BVXC |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | 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
