7477 datasheet(76/354 Pages) RENESAS

76 / 354 page

7470/7471/7477/7478 GROUP USER’S MANUAL

HARDWARE

1.11 Interrupts

1-59

Fig. 1.11.8 Structure of Edge polarity selection register

1.11.5 Related registers

(1) Edge polarity selection register (EG: Address 00D416)

The Edge polarity selection register selects an active edge of each INT interrupt and each CNTR

interrupt selects a source of interrupt.

Figure 1.11.8 shows a structure of Edge polarity selection register.

b7 b6 b5 b4 b3 b2 b1 b0

Name

Function

At reset

Edge polarity selection register (EG) [Address

Edge polarity selection register

INT0 edge selection

bit

INT1 edge selection

bit

CNTR0 edge

selection bit

CNTR1 edge

selection bit

CNTR0/CNTR1

interrupt selection bit

INT1 source selection

bit (at STP or WIT

instruction execution)

0 : P31/INT1

1 : P00 to P07 “L” level input

(for key-on wake-up)

6, 7

Nothing is allocated for these bits. These are

write disabled bits and are undefined at reading.

0 : Falling edge

1 : Rising edge

0 : CNTR0

1 : CNTR1

?? !

0 : Falling edge

1 : Rising edge

0 : Falling edge

1 : Rising edge

0 : Falling edge

1 : Rising edge

00D416]

7477 Datasheet(PDF) 76 Page - Renesas Technology Corp

7477 Datasheet(HTML) 76 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL