68901P04 查看數據表（PDF） - STMicroelectronics

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68901P04

MULTI–FUNCTION PERIPHERAL

STMicroelectronics 

MK68901

There are 16 vector addresses generated internally

by the MK68901, one for each of the 16 interrupt

channels.

The Interrupt Control Registers (figure 8) provide

control of interrupt processing for all I/O facilities of

the MK68901. These registers allow the program-

Figure 5 : General Purpose I/O Registers.

mer to enable or disable any or all of the 16 inter-

rupts, providing masking for any interrupt, and pro-

vide access to the pending and in-service status of

the interrupt. Optional end-of-interrupt modes are

available under software control. All the interrupts

are prioritized as shown in figure 9.

Figure 6 : Interrupt Vector.

V000352

V000353

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