M32CSLASH86 datasheet(215/505 Pages) RENESAS

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Page 192

17. Serial I/O

)

(

External Interrupt Request Source Select Register

Symbol

Address

After Reset

IFSR

031F16

0016

INT0 Interrupt Polarity

Select Bit(1)

INT1 Interrupt Polarity

Select Bit(1)

INT2 Interrupt Polarity

Select Bit(1)

INT3 Interrupt Polarity

Select Bit(1)

INT4 Interrupt Polarity

select bit(1)

INT5 Interrupt Polarity

Select Bit(1)

0 : One edge

1 : Both edges

0 : One edge

1 : Both edges

0 : One edge

1 : Both edges

0 : One edge

1 : Both edges

0 : One edge

1 : Both edges

Bit Name

Bit

Symbol

Function

NOTES:

1. Set this bit to "0" to select a level-sensitive triggering.

When setting this bit to "1", set the POL bit in the INTilC register (i = 0 to 5) to "0" (falling edge).

UART1, UART4

Interrupt Source

Select Bit

UART0, UART3

Interrupt Source

Select Bit

0 : One edge

1 : Both edges

IFSR3

IFSR4

IFSR5

IFSR6

IFSR0

IFSR2

IFSR1

IFSR7

0 : UART3 bus conflict, start condition

detect, stop condition detect

1 : UART0 bus conflict, start condition

detect, stop condition detect

0 : UART4 bus conflict, start condition

detect, stop condition detect

1 : UART1 bus conflict, start condition

detect, stop condition detect

Figure 17.9 IFSR Register

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