59629855201QZA View Datasheet(PDF) - Aeroflex UTMC

Part Name

Description

Manufacturer

59629855201QZA

RadHard MicroController

Aeroflex UTMC 

Interrupt Mask Register

The Interrupt Mask Register (MK) contains one mask bit for

each of the 15 system interrupts. All bits in the MK are set or

reset under software control, setting bits 15 and 10 has no effect

on the UT69R000’s interrupt operation because these

interrupts cannot be masked. The UT69R000 reads and writes

the MK with instructions OTR Rd,MK and INR Rd,MK. A

logical one unmasks an interrupt; logic zero masks an interrupt.

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

PM I FFEF T IT I I I I IN

W C N L I X L I N I N N ON O /

D H T P P C P M TM T T L T LU

N E OOOL U A 1B 2 3 1 4 2

MSB

LSB

Figure 13. The Interrupt Mask Register (MK)

Bit Number

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Mnemonic

PWDN

MCHE

INT0

FLPO

FIPO

EXCL

FLPN

TIMA

INT1

TIMB

INT2

INT3

IOLI

I0L2

INT7

NU

Description

Non-Maskable Interrupt

Machine Error Interrupt

External Interrupt 0

Software Interrupt 3

Fix Point Overflow

Software Interrupt 2

Software Interrupt 1

Timer A Interrupt

External Interrupt 1

Timer B Interrupt

External Interrupt 2

External Interrupt 3

External Interrupt 6

External Interrupt 4

External Interrupt 7

Not Used (see Note on page 11)

14

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