SH7101 datasheet(110/560 Pages) RENESAS

110 / 560 page

Section 6 Interrupt Controller (INTC)

Rev.1.00 Sep. 18, 2008 Page 76 of 522

REJ09B0069-0100

6.3.1

Interrupt Control Register 1 (ICR1)

ICR1 is a 16-bit register that sets the input signal detection mode of the external interrupt input

pins NMI and

IRQ0 to IRQ3 and indicates the input signal level at the NMI pin.

Bit

Bit Name

Initial

Value

R/W

Description

NMIL

1/0

NMI Input Level

Sets the level of the signal input to the NMI pin. This bit

can be read to determine the NMI pin level. This bit

cannot be modified.

0: NMI input level is low

1: NMI input level is high

14 to 9

⎯

All 0

Reserved

These bits are always read as 0. The write value should

always be 0.

NMIE

R/W

NMI Edge Select

0: Interrupt request is detected at falling edge of NMI

input

1: Interrupt request is detected at rising edge of NMI

input

IRQ0S

R/W

IRQ0 Sense Select

Sets the IRQ0 interrupt request detection mode.

0: Interrupt request is detected at low level of IRQ0

input

1: Interrupt request is detected at edge of IRQ0 input

(edge direction is selected by ICR2)

IRQ1S

R/W

IRQ1 Sense Select

Sets the IRQ1 interrupt request detection mode.

0: Interrupt request is detected at low level of IRQ1

input

1: Interrupt request is detected at edge of IRQ1 input

(edge direction is selected by ICR2)

IRQ2S

R/W

IRQ2 Sense Select

Sets the IRQ2 interrupt request detection mode.

0: Interrupt request is detected at low level of IRQ2

input

1: Interrupt request is detected at edge of IRQ2 input

(edge direction is selected by ICR2)

SH7101 Datasheet(PDF) 110 Page - Renesas Technology Corp

SH7101 Datasheet(HTML) 110 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