HD6432138SW datasheet(169/1061 Pages) RENESAS

169 / 1061 page

Section 5 Interrupt Controller

Rev. 4.00 Jun 06, 2006 page 115 of 1004

REJ09B0301-0400

Interrupts KIN7 to KIN0: Interrupts KIN7 to KIN0 are requested by input signals at pins

KIN7

KIN0. When any of pins KIN7 to KIN0 are used as key-sense inputs, the corresponding

KMIMR bits should be cleared to 0 to enable those key-sense input interrupts. The remaining

unused key-sense input KMIMR bits should be set to 1 to disable those interrupts. Interrupts KIN7

to KIN0 correspond to the IRQ6 interrupt. Interrupt request generation pin conditions, interrupt

request enabling, interrupt control level setting, and interrupt request status indications, are all in

accordance with the IRQ6 interrupt settings.

When pins

KIN7 to KIN0 are used as key-sense interrupt input pins, either low-level sensing or

falling-edge sensing must be designated as the interrupt sense condition for the corresponding

interrupt source (IRQ6).

5.3.2

Internal Interrupts

There are 38 sources for internal interrupts from on-chip supporting modules, plus one software

interrupt source (address break).

• For each on-chip supporting module there are flags that indicate the interrupt request status,

and enable bits that select enabling or disabling of these interrupts. If any one of these is set to

1, an interrupt request is issued to the interrupt controller.

• The interrupt control level can be set by means of ICR.

• The DTC can be activated by an FRT, TMR, SCI, or other interrupt request. When the DTC is

activated by an interrupt, the interrupt control mode and interrupt mask bits have no effect.

5.3.3

Interrupt Exception Vector Table

Table 5.4 shows interrupt exception handling sources, vector addresses, and interrupt priorities.

For default priorities, the lower the vector number, the higher the priority.

Priorities among modules can be set by means of ICR. The situation when two or more modules

are set to the same priority, and priorities within a module, are fixed as shown in table 5.4.

HD6432138SW Datasheet(PDF) 169 Page - Renesas Technology Corp