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B O A R D
H A R D W A R E
two controllers to access the same SSRAM, using two activation signals, ADSC# and
ADSP#; an activation with ADSP# requires data and byte enables one clock cycle
after the address and activation.
Syncburst Pipelined (Figure 49) is identical except for registered outputs, which delay
read data an additional clock cycle but may be necessary for high speed designs.
Figure 48 - SSRAM Flow-trough
Figure 49 - SSRAM Pipeline
Zero-Bus-Turnaround (ZBT) SSRAM’s are designed to eliminate wait states between
reads and writes by synchronizing data. Figure 50 accept and return data one clock
cycle after the address phase, and ZBT Pipeline SSRAMs (Figure 51) accept and return
data two clock cycles after the address phase. This allows the user to begin a write burst
ET6000K10S User Guide
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