CY7C1215H
Switching Waveforms (continued)
Write Cycle Timing[16, 17]
|
| tCYC |
|
|
|
|
|
|
|
|
| |
CLK |
| tCH | tCL |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
| tADS | tADH |
|
|
|
|
|
|
|
|
|
|
ADSP |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| tADS | tADH |
|
|
| ADSC extends burst |
|
|
| |
|
|
|
|
|
|
| tADS | tADH |
|
| ||
|
|
|
|
|
|
|
|
|
|
| ||
ADSC |
|
|
|
|
|
|
|
|
|
|
|
|
| tAS | tAH |
|
|
|
|
|
|
|
|
|
|
ADDRESS |
| A1 |
|
| A2 |
|
|
|
| A3 |
|
|
|
| Byte write signals are |
|
|
|
|
|
|
|
| ||
|
| ignored for first cycle when |
|
|
|
|
|
| tWES tWEH |
| ||
|
| ADSP initiates burst |
|
|
|
|
|
|
| |||
BWE, |
|
|
|
|
|
|
|
|
|
|
|
|
BW[A :D] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| tWES tWEH |
|
|
|
|
|
|
GW |
|
|
|
|
|
|
|
|
|
|
|
|
| tCES | tCEH |
|
|
|
|
|
|
|
|
|
|
CE |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| tADVS tADVH |
|
ADV |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ADV suspends burst |
|
|
|
| |
OE |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| tDS | tDH |
|
|
|
|
|
|
|
|
Data In (D) | t | D(A1) | D(A2) | D(A2 + 1) | D(A2 + 1) | D(A2 + 2) | D(A2 + 3) | D(A3) | D(A3 + 1) | D(A3 + 2) | ||
|
|
|
|
|
|
|
|
|
|
|
| |
|
| OEHZ |
|
|
|
|
|
|
|
|
|
|
Data Out (Q) |
|
|
|
|
|
|
|
|
|
|
|
|
BURST READ | Single WRITE | BURST WRITE |
| DON’T CARE | UNDEFINED |
Note:
17. Full width Write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW[A:D] LOW.
Extended BURST WRITE
Document #: | Page 11 of 15 |
[+] Feedback
