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7733 Datasheet(PDF) 636 Page - Renesas Technology Corp |
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7733 Datasheet(HTML) 636 Page - Renesas Technology Corp |
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636 / 940 page  OVERVIEW 1–4 7735 Group User’s Manual 1.3 Pin description Concerning section “1.3 Pin description,” the 7735 Group differs from the 7733 Group in the following: ___ • “Description of pin E in Table 1.3.1” • “Description of pins P00–P07, P20–P27 and P30–P33 in Table 1.3.2” • “1.3.1 Examples of handling unused pins” The other description is the same as that of the 7733 Group. Therefore, refer to part 1: • “1.3 Pin description” (page 1-5 in part 1) Table 1.3.1 Pin description (1) Functions [Single-chip Mode] __ This pin outputs internal enable signal E. When E’s level is “L,” the microcomputer reads data and instruction codes or writes data. Also, output of internal enable _ signal E can be stopped by software. [Memory Expansion Mode] [Microprocessor Mode] ________ This pin outputs read enable signal RDE. This signal’s level is “L” in the data read period of the read cycle. Pin _ E Name Internal enable output Input/Output Output 1.3 Pin description |
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