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5-11
STANDARD AND PTS INTERRUPTS
Figure 5-4. Standard Interrupt Response Time
5.4.2.2 PTS 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.
Figure 5-5. PTS Interrupt Response Time
A0136-02
11 2 1239
Ending
Instruction
End
"NORML"
Call is
Forced
If Stack
External
"PUSHA"
Interrupt Routine
ClearedSet
Execution
EXTINT
Pending
Interrupt
Response
Time
56 State Times
If Stack
External
6
"NORML"
4 3 2 1
Ending
Instruction
End
"NORML"
Vector to PTS
Control Block
PTS
PTS Interrupt Routine
ClearedSet
Execution
EXTINT
Pending
Interrupt
Response Time
Latency Time
"NORML"
43 State Times
PTS
A0142-01
4 3 2 1
39