IA188EM-PQF100I-R datasheet(43/133 Pages) INNOVASIC

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IA186EM/IA188EM

Data Sheet

8/16-BIT Microcontrollers

As of Production Version -03

WD (bit 9) – Watchdog Timer Interrupt In-Service Request. Setting this bit to 1 is an indication that

the Watchdog Timer interrupt is masked.

I [4:0] (bits 8 - 4) Interrupt Mask. Setting any of these bits to 1 is an indication that the relevant

interrupt is masked.

D1-D0 (bit 3:2) DMA Channel Interrupt Mask. Setting this bit to 1 is an indication that the respective

DMA channel interrupt is masked.

Reserved (bit 1)

TMR (bit 0) – Timer Interrupt Mask. When set to 1, it indicates that the timer control unit interrupt is

masked.

Slave Mode

The interrupt mask register is read/write. Setting a bit in this register is effectively the same as setting the

MSK bit in the corresponding interrupt control register. Setting a bit to 1 masks the interrupt request. The

interrupt request is enabled when the corresponding bit is set to 0.

The IMASK register contains 003dh on reset.

12 11

Reserved

TMR2 TMR1 D1 D0 Res TMR0

Reserved (bits 15 – 6)

TMR2 (bit 5) Timer2 Interrupt Mask. This bit provides an indication of the state of the mask bit in

the Timer Interrupt Control register. When it is set to 1, it indicates that the interrupt request is

masked.

TMR1 (bit 4) Timer1 Interrupt Mask. This bit provides an indication of the state of the mask bit in

the Timer Interrupt Control register. When it is set to 1, it indicates that the interrupt request is

masked.

D1-D0 (bit 3:2) DMA Channel Interrupt Mask. This bit provides an indication of the state of the

mask bit in the respective DMA channel Interrupt Control register. When it is set to 1, it indicates that

the interrupt request is masked.

Reserved (bit 1)

TMR0 (bit 0) – Timer Interrupt Mask. This bit provides an indication of the state of the mask bit in

the Timer Interrupt Control register. When it is set to 1, it indicates that the interrupt request is

masked.

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