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HD6433713 Datasheet(PDF) 108 Page - Renesas Technology Corp |
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HD6433713 Datasheet(HTML) 108 Page - Renesas Technology Corp |
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108 / 324 page  Section 5 RAM 5.1 Overview The H8/3714 has 512 bytes of high-speed static RAM on-chip. The H8/3713 and the H8/3712 each has 384 bytes. The RAM is connected to the CPU by a 16-bit data bus, allowing high-speed two-state access for both byte data and word data. 5.1.1 Block Diagram Figure 5-1 shows a block diagram of the on-chip RAM. Figure 5-1 RAM Block Diagram (H8/3714) 5.1.2 Display RAM Area In the H8/3714, H8/3713 and H8/3712, RAM addresses H'FEC0 to H'FEFF are also used as a display RAM for the VFD controller/driver. If the VFD controller/driver is not used, this area is available as an ordinary RAM. Internal data bus (upper 8 bits) Even-numbered addresses Odd-numbered addresses H'FF7E H'FF7F Internal data bus (lower 8 bits) H'FD80 H'FD82 H'FD81 H'FD83 H'FF7E H'FD80 H'FD82 97 |
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