STANDARD AND PTS INTERRUPTS

Execution

EXTINT

Pending Interrupt

Response Time

4

3

2

1

39

11

2

12

6

Ending

"NORML"

End

Call is

If Stack

"PUSHA"

If Stack

Instruction

"NORML"

Forced

External

External

 

 

 

 

 

 

 

Interrupt Routine

Set

 

 

Cleared

 

 

 

 

 

56 State Times

 

 

 

 

A0136-02

Figure 5-4. Standard Interrupt Response Time

5.4.2.2PTS Interrupt Latency

The maximum delay for a PTS interrupt is 43 state times (4 + 39) as shown in Figure 5-5. This delay time does not include the added delay if a protected instruction is being executed or if a PTS request is already in progress. See Table 5-4 for execution times for PTS cycles.

Execution

EXTINT

Pending

Interrupt

Response Time

 

 

4

3

2

1

 

 

39

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ending

 

"NORML"

 

End

 

 

Vector to PTS

 

PTS

PTS

 

 

 

 

 

 

 

 

 

 

 

 

Instruction

 

 

"NORML"

 

 

 

Control Block

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PTS Interrupt Routine

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set

 

 

 

 

 

 

 

 

 

Cleared

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Latency Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43 State Times

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A0142-01

Figure 5-5. PTS Interrupt Response Time

5-11

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Intel 8XC196MC, 8XC196MD, 8XC196MH manual Standard Interrupt Response Time PTS Interrupt Latency