61
Chapter 2
Pin Functions
User’s Manual U16580EE3V1UD00
2.3 Description of Pin Functions
(1)
P00 to P04 (Port 0) … Input
Port 0 is an 8-bit input-only port in which all pins are fixed for input.
Besides functioning as a port, in control mode, P00 to P04 operate as NMI input, external interrupt
request signal, real-time pulse unit (RPU) emergency shut off signal input, and A/D converter
(ADC) external trigger input. Normally, if function pins also serve as ports, one mode or the other
is selected using a port mode control register. However, there is no such register for P00 to P04.
Therefore, the input port cannot be switched with the NMI input pin, external interrupt request
input pin, RPU emergency shut off signal input pin, and A/D converter (ADC) external trigger input
pin. Read the status of each pin by reading the port.
(a) Port mode
P00 to P04 are input-only.
(b) Control mode
P00 to P04 also serve as NMI, INTP0 to INTP3, ESO0, ESO1, ADTRG0, and ADTRG1 pins, but
the control function cannot be disabled.
(i) NMI (Non-maskable interrupt request) … Input
This is non-maskable interrupt request input.
(ii) INTP0 to INTP3 (Interrupt request from peripherals) … Input
These are external interrupt request input pins.
(iii) ESO0, ESO1 (Emergency shut off) … Input
These pins input timer TMR0 and timer TMR1 emergency shut off signals.
(iv) ADTRG0, ADTRG1 (A/D trigger input) … Input
These are A/D converter external trigger input pins.
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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