M30622ECTFP datasheet(65/184 Pages) MITSUBISHI

65 / 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

______

INT Interrupt

________

INT0 to INT5 are triggered by the edges of external inputs. The edge polarity is selected using the polarity

select bit.

________

Of interrupt control registers, 004816 is used both as serial I/O4 and external interrupt INT5 input control

________

interrupt request cause select bits - bits 6 and 7 of the interrupt request cause select register (035F16) - to

specify which interrupt request cause to select. After having set an interrupt request cause, be sure to clear

the corresponding interrupt request bit before enabling an interrupt.

Either of the interrupt control registers - 004816, 004916 - has the polarity-switching bit. Be sure to set this bit

to “0” to select an serial I/O as the interrupt request cause.

As for external interrupt input, an interrupt can be generated both at the rising edge and at the falling edge

by setting “1” in the INTi interrupt polarity switching bit of the interrupt request cause select register

(035F16). To select both edges, set the polarity switching bit of the corresponding interrupt control register

to ‘falling edge’ (“0”).

Figure 1.14.10 shows the Interrupt request cause select register.

Note 1:

_______

In M30623(80-pin package), can not use INT3 to INT5 as the interrupt factor, because

_______

P15/D13/INT3 to P17/D15/INT5 have no corresponding external pin.

Figure 1.14.10. Interrupt request cause select register

Interrupt request cause select register

Bit name

Fumction

Bit symbol

Symbol

Address

When reset

IFSR

035F16

0016

IFSR0

INT0 interrupt polarity

swiching bit

0 : SIO3

1 : INT4

0 : SIO4

1 : INT5

0 : One edge

1 : Two edges

0 : One edge

1 : Two edges

0 : One edge

1 : Two edges

0 : One edge

1 : Two edges

0 : One edge

1 : Two edges

INT1 interrupt polarity

swiching bit

INT2 interrupt polarity

swiching bit

INT3 interrupt polarity

swiching bit

INT4 interrupt polarity

swiching bit

INT5 interrupt polarity

swiching bit

0 : One edge

1 : Two edges

Interrupt request cause

select bit

Interrupt request cause

select bit

IFSR1

IFSR2

IFSR3

IFSR4

IFSR5

IFSR6

IFSR7

Note 1: In M30623(80-pin package), can not use INT3 to INT5 interrupts,

so setting data of these bits are invalid.

Note 2: In M30623(80-pin package), can not use INT3 to INT5 interrupts.

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INT Interrupt

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