Figure 84. interrupt control register for interna, Rce. figure 8-4 shows the reg – Intel 80C188XL User Manual

Page 208

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8-13

INTERRUPT CONTROL UNIT

Figure 8-4. Interrupt Control Register for Internal Sources

Register Name:

Interrupt Control Register (internal sources)

Register Mnemonic:

TCUCON, DMA0CON, DMA1CON

Register Function:

Control register for the internal interrupt sources

Bit

Mnemonic

Bit Name

Reset

State

Function

MSK

Interrupt
Mask

1

Clear to enable interrupts from this source.

PM2:0

Priority
Level

111

Defines the priority level for this source.

NOTE:

Reserved register bits are shown with gray shading. Reserved bits must be written
to a logic zero to ensure compatibility with future Intel products.

A1213-A0

15

0

P

M

0

P

M

1

P

M

2

M

S
K

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