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M306V2EEFS Datasheet(PDF) 244 Page - Renesas Technology Corp |
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M306V2EEFS Datasheet(HTML) 244 Page - Renesas Technology Corp |
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244 / 271 page ![]() Rev.1.40 Oct 06, 2004 page 244 of 269 M306V2ME-XXXFP, M306V2EEFP Table 2.17.1 Example connection of unused pins in single-chip mode Table 2.17.2 Example connection of unused pins in memory expansion mode and microprocessor mode Pin nameConnection Ports P0 to P10 XOUT (Note) BYTE AVCC After setting for input mode, connect every pin to VSS or VCC via a resistor; or after setting for output mode, leave these pins open. Open Connect to VCC Connect to VSS Note: With external clock input to XIN pin. CNVSS Connect via resistor to VSS (pull-down) Pin name Connection Ports P6 to P10 AVCC After setting for input mode, connect every pin to VSS or VCC via a resistor; or after setting for output mode, leave these pins open. Open Connect to VCC Note: With external clock input to XIN pin. HOLD, RDY Connect via resistor to VCC (pull-up) BHE, ALE, HLDA, XOUT(Note), BCLK P45/CS1 to P47/CS3Sets ports to input mode, sets bits CS1 through CS3 to “0,” and connects to Vcc via resistors (pull-up). CNVSS Connect via resistor to VSS (pull-down) in the memory expansion mode. Connect via resistor to VCC (pull-up) in the microprocessor mode. Figure 2.17.18 Example connection of unused pins Port P0 to P10 (Input mode) · · · (Input mode) (Output mode) XOUT AVCC BYTE Microcomputer VCC VSS In single-chip mode Port P6 to P10 (Input mode) · · · (Input mode) (Output mode) XOUT Open Microcomputer VCC AVCC VSS In memory expansion mode or in microprocessor mode HOLD RDY ALE BCLK BHE HLDA Open Open Open · · · · · · Port P45/CS1 to P47/CS3 0.47 µF CNVSS 0.47 µF CNVSS (memory expansion mode) CNVSS (microprocessor mode) |
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