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HD6432351 датащи(PDF) 208 Page - Renesas Technology Corp |
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HD6432351 датащи(HTML) 208 Page - Renesas Technology Corp |
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208 / 1025 page ![]() Section 6 Bus Controller Rev. 3.00 Sep 15, 2006 page 174 of 988 REJ09B0330-0300 TRp φ CS (RAS) TRr TRc1 TRc2 CAS, LCAS Figure 6.25 CBR Refresh Timing When the RCW bit is set to 1, RAS signal output is delayed by one cycle. The width of the RAS signal should be adjusted with bits RLW1 and RLW0. These bits are only enabled in refresh operations. Figure 6.26 shows the timing when the RCW bit is set to 1. TRp φ CSn (RAS) TRr TRc1 TRw CAS, LCAS TRc2 Figure 6.26 CBR Refresh Timing (When RCW = 1, RLW1 = 0, RLW0 = 1) |
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