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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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SH7708 Scheda tecnica(PDF) 306 Page - Renesas Technology Corp |
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SH7708 Scheda tecnica(HTML) 306 Page - Renesas Technology Corp |
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306 / 633 page  288 Memory Card Interface Burst Timing: In the SH7708 Series, when the IC memory card interface is selected, page mode burst access mode can be used, for read access only, by setting bits A5BST1 and A5BST0 in BCR for physical space area 5, or bits A6BST1 and A6BST0 for area 6. This burst access mode is not stipulated in JEIDA version 4.2 (PCMCIA2.1), but allows high-speed data access using ROM provided with a burst mode, etc. Burst access mode timing is shown in figures 10.44 and 10.45. CKIO Tpcm1 A25 to A4 CExx A3 to A0 RD/ WR RD (read) D15 to D0 (read) BS Tpcm2 Tpcm1 Tpcm2 Tpcm1 Tpcm2 Tpcm1 Tpcm2 Figure 10.44 Basic Timing for PCMCIA Memory Card Interface Burst Access |
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