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M30622MA-721FP Datasheet(PDF) 9 Page - Mitsubishi Electric Semiconductor |
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M30622MA-721FP Datasheet(HTML) 9 Page - Mitsubishi Electric Semiconductor |
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9 / 184 page  Tentative Specifications REV.A Mitsubishi microcomputers M16C / 62T Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Specifications in this manual are tentative and subject to change. Under development 9 Pin Description Pin Description Pin name VCC, VSS CNVSS ____________ RESET XIN XOUT BYTE AVCC AVSS VREF P00 to P07 D0 to D7 P10 to P17 D8 to D15 P20 to P27 A0 to A7 A0/D0 to A7/D7 A0, A1/D0 to A7/D6 P30 to P37 A8 to A15 A8/D7, A9 to A15 Signal name Power supply input CNVSS Reset input Clock input Clock output External data bus width select input Analog power supply input Analog power supply input Reference voltage input I/O port P0 I/O port P1 I/O port P2 I/O port P3 I/O type Input Input Input Output Input Input Input/output Input/output Input/output Input/output Input/output Output Input/output Output Input/output Input/output Output Input/output Function Supply 4.2 V to 5.5 V to the VCC pin. Supply 0 V to the VSS pin. This pin switches between processor modes. Connect it to the VSS pin when operating in single-chip or memory expansion mode. Connect it to the VCC pin when operating in microprocessor mode. 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 selects the width of an external data bus. A 16-bit width is selected when this input is “L”; an 8-bit width is selected when this input is “H”. This input must be fixed to either “H” or “L”. When operating in single-chip mode, connect this pin to VSS. In M30623 (80-pin package), the BYTE signal is internally connected to the CNVSS signal. 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. Pins in this port also function as A-D converter extended input pins as selected by software when operating in single-chip mode. When set as a separate bus, these pins input and output data (D0–D7). This is an 8-bit I/O port equivalent to P0. Pins in this port also function as external interrupt pins as selected by software. When set as a separate bus, these pins input and output data (D8–D15). This is an 8-bit I/O port equivalent to P0. Pins in this port also function as A-D converter extended input pins as selected by software when operating in single-chip mode. These pins output 8 low-order address bits (A0–A7). If the external bus is set as an 8-bit wide multiplexed bus, these pins input and output data (D0–D7) and output 8 low-order address bits (A0–A7) separated in time by multiplexing. If the external bus is set as a 16-bit wide multiplexed bus, these pins input and output data (D0–D6) and output address (A1–A7) separated in time by multiplexing. They also output address (A0). This is an 8-bit I/O port equivalent to P0. These pins output 8 middle-order address bits (A8–A15). If the external bus is set as a 16-bit wide multiplexed bus, these pins input and output data (D7) and output address (A8) separated in time by multiplexing. They also output address (A9–A15). |
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