Chapter 1 Overview

Table 1-3-1 Pin Function Summary (4/4)

 

Pin No.

Name

Type

Dual Function

Function

 

 

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

MMOD

Input

 

Test mode

This pin sets the test mode.

 

 

 

 

 

switch input pin

 

 

 

Must be set to L.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29 to 32

IRQ0 to

Input

P20,

External interrupt

 

The valid edge for these external interrupt input pins can be selected

 

 

 

IRQ3

 

P21(SENS),

input pins

 

 

 

with the IRQnICR registers.

 

 

 

 

 

P22,P23

 

 

 

 

 

IRQ1 is an external interrupt pin that is able to determine AC zero

 

 

 

 

 

 

 

 

 

 

 

crossings. It can also be used as a normal external interrupt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When IRQ0 to 3 are not used for interrupts, these can be used as normal

 

 

 

 

 

 

 

 

 

 

 

I/O pins.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6 to 13

AN0 to AN7

Input

PA0 to PA7

Analog input pins

 

 

Analog input pins for an 8-channel, 10-bit A/D converter.

 

 

 

 

 

 

 

 

 

 

When not used for analog input, these pins can be used as normal I/O

 

 

 

 

 

 

 

 

 

 

pins.

 

 

 

 

 

 

 

 

 

 

 

30

SENS

Input

IRQ1(P21)

AC zero-cross

 

 

SENS is an input pin for an AC zero-cross detection circuit. The AC zero-

 

 

 

 

 

detection input pin

 

 

cross circuit outputs a high level when the input is at an intermediate level. It

 

 

 

 

 

 

 

 

 

 

outputs a low level at all other times. SENS is connected to the P21 input

 

 

 

 

 

 

 

 

 

 

circuit and the IRQ1 interrupt circuit. When the AC zero-cross detection

 

 

 

 

 

 

 

 

 

 

circuit is not used, this pin can be used as a normal P21 input. The P21IM flag

 

 

 

 

 

 

 

 

 

 

of the FLOAT1 register sets which input is selected.

 

 

 

 

 

 

 

 

 

 

 

 

 

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Image 25
Panasonic MN101C00 user manual Pin Function Summary 4/4, Mmod