HD404374FT datasheet(40/161 Pages) RENESAS

40 / 161 page

HD404374/HD404384/HD404389/HD404082/HD404084 Series

Rev.5.00, Sep.11.2003, page 40 of 161

External interrupt mask (IM0: $001, 1):

This bit masks an interrupt request by the external interrupt request flag (table 8).

Table 8

External Interrupt Mask (IM0: $001, 1)

External Interrupt Mask (IM0)

Interrupt Request

External interrupt request enabled

External interrupt request masked (held pending)

Timer A interrupt request flag (IFTA: $002,0):

The timer A interrupt request flag is set by timer A overflow output (table 9).

Table 9

Timer A Interrupt Request Flag (IFTA: $002,0)

Timer A Interrupt Request Flag

(IFTA)

Interrupt Request

No timer A interrupt request

Timer A interrupt request generated

Timer A interrupt mask (IMTA: $002,1):

This bit masks an interrupt request by the timer A interrupt request flag (table 10).

Table 10

Timer A Interrupt Mask (IMTA: $002,1)

Timer A Interrupt Mask (IMTA)

Interrupt Request

Timer A interrupt request enabled

Timer A interrupt request masked (held pending)

Timer B interrupt request flag (IFTB: $002,2):

The timer B interrupt request flag is set by timer B overflow output (table 11).

Table 11

Timer B Interrupt Request Flag (IFTB: $002,2)

Timer B Interrupt Request Flag

(IFTB)

Interrupt Request

No timer B interrupt request

Timer B interrupt request generated

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