PT2000 datasheet(96/148 Pages) NXP

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NXP Semiconductors

PT2000

8.3.2.15

Microcore0 interrupt status register

This 13-bit register stores the information about the interrupt currently being served by uc0. If no interrupt is being served, this register is

cleared.

• Interrupt_routine_in_progress: '1' when an interrupt is being served.

• Irq_source:

• “000”: serving start rising edge interrupt

• “001”: serving driver disable interrupt request

• “010”: serving automatic diagnostics interrupt request

• “011”: serving start falling edge interrupt

• “100”: serving software interrupt request 0

• “101”: serving software interrupt request 1

• “110”: serving software interrupt request 2

• “111”: serving software interrupt request 3

• Iret_address: the value of the return address after the interrupt is served.

The return address after an interrupt is always the address where the code execution would continue if no interrupt had occurred. For wait

and conditional jump instructions, the address is defined considering the status of the feedback at the moment the interrupt request took

place.

8.3.2.16

Microcore1 interrupt status register

This 13-bit register stores the information about the interrupt currently being served by uc1. If no interrupt is being served, this register is

cleared.

• Interrupt_routine_in_progress: '1' when an interrupt is being served.

• Irq_source:

• “000”: serving start rising edge interrupt

• “001”: serving driver disable interrupt request

• “010”: serving automatic diagnostics interrupt request

• “011”: serving start falling edge interrupt

• “100”: serving software interrupt request 0

• “101”: serving software interrupt request 1

• “110”: serving software interrupt request 2

• “111”: serving software interrupt request 3

• Iret_address: the value of the return address after the interrupt is served.

Table 73. uc0_irq_status (10Fh, 12Fh, 14Fh)

Bit

Name

Reserved

interrupt_ro

utine_in_pro

gress

irq_source

iret_address

R/W

Lock

Reset

000

1111111111

Table 74. uc1_irq_status (110h, 130h, 150h)

Bit

Name

Reserved

interrupt_ro

utine_in_pro

gress

irq_source

iret_address

R/W

Lock

Reset

000

1111111111

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