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M30623S4 Datasheet(PDF) 9 Page - Renesas Technology Corp |
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M30623S4 Datasheet(HTML) 9 Page - Renesas Technology Corp |
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9 / 231 page  Pin Description Mitsubishi microcomputers M16C / 62 Group (80-pin) SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER 8 VCC, VSS CNVSS XIN XOUT (BYTE) AVCC AVSS VREF P00 to P07 P20 to P27 P30 to P37 P40 to P43 Signal name Power supply input CNVSS Reset input Clock input Clock output External data bus width select input Analog power supply input Reference voltage input I/O port P0 I/O port P2 I/O port P3 I/O port P4 Supply 2.7 to 5.5 V to the VCC pin. Supply 0 V to the VSS pin. Function This pin switches between processor modes. Connect it to the VSS pin. A “L” on this input resets the microcomputer. These pins are provided for the main clock generating circuit.Connect a ceramic resonator or crystal between the XIN and the XOUT pins. To use an externally derived clock, input it to the XIN pin and leave the XOUT pin open. This pin is connected to CNVss in microcomputer. Connect this pin to VSS. This pin is a power supply input for the A-D converter. Connect this pin to VCC. This pin is a power supply input for the A-D converter. Connect this pin to VSS. This pin is a reference voltage input for the A-D converter. This is an 8-bit CMOS I/O port. It has an input/output port direction register that allows the user to set each pin for input or output individually. When set for input, the user can specify in units of four bits via software whether or not they are tied to a pull-up resistor. This is an 8-bit I/O port equivalent to P0. This is an 8-bit I/O port equivalent to P0. This is an 4-bit I/O port equivalent to P0. Pin name I I I O I I I/O I/O I/O Analog power supply input I/O I/O RESET I/O port P5 I/O I/O I/O I/O I/O I I/O port P6 I/O port P7 I/O port P8 I/O port P85 P50 to P57 P60 to P67 P70, P71, P76, P77 P80 to P84, P86,P87, P85 This is an 8-bit I/O port equivalent to P0. In single-chip mode, P57 in this port outputs a divide-by-8 or divide-by-32 clock of XIN or a clock of the same frequency as XCIN as selected by software. This is an 8-bit I/O port equivalent to P0. Pins in this port also function as UART0 and UART1 I/O pins as selected by software. This is an 4-bit I/O port equivalent to P0 (P70 and P71 are N channel open-drain output). Pins in this port also function as timer A0–A3, timer B5 or UART2 I/O pins as selected by software. P80 to P84, P86, and P87 are I/O ports with the same functions as P0. Using software, they can be made to function as the I/O pins for timer A4 and the input pins for external interrupts. P86 and P87 can be set using software to function as the I/O pins for a sub clock generation circuit. In this case, connect a quartz oscillator between P86 (XCOUT pin) and P87 (XCIN pin). P85 is an input-only port that also functions for NMI. The NMI interrupt is generated when the input at this pin changes from “H” to “L”. The NMI function cannot be cancelled using software. The pull-up cannot be set for this pin. Pin Description |
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