416
CPM1/CPM1A Cycle Time and I/O Response Time Section 7-2
In addition to the response time shown above, the time required for executing
the interrupt processing routine itself and a return time of 30
µs must also be
accounted for when returning to the process that was interrupted.
7-2-6 CPM1/CPM1A Instruction Execution Times
The following table lists the execution times for CPM1/CPM1A instructions.
Basic Instructions
Special Instructions
Code Mnemonic ON execution
time (µs)
Conditions (Top: min.; bottom: max.) OFF execution time (µs)
RSET IL JMP
---
---
LD
LD NOT
1.72 Any ---
---
---
---
---
AND
AND NOT
OR
OR NOT
1.32
---
---
AND LD
OR LD
0.72
---
---
OUT
OUT NOT
4.0
--- SET 5.8
--- RSET 5.9
--- TIM 10.0 Constant for SV 16.2 16.0 6.4
*DM for SV 31.4 31 6.4
--- CNT 12.5 Constant for SV 14.1 6.2 6.6
*DM for SV 29.1 6.2 6.6
Code Mnemonic ON execution
time (µs)
Conditions (Top: min.; bottom: max.) OFF execution time (µs)
00 NOP 0.36 Any
01 END 10.8
02 IL 4.6 2.6
03 ILC 3.6 3.6
04 JMP 4.3 2.4
05 JME 4.7 4.7
06 FAL 38.5 5.5
07 FALS 5.0 5.4
08 STEP 14.9 11.1
09 SNXT 14.2 7.6
10 SFT Reset IL JMP
21.9 With 1-word shift register 19.7 2.6 2.6
34.1 With 10-word shift register 26.5 2.6 2.6
93.6 With 100-word shift register 60.1 2.6 2.6
11 KEEP 6.2 Any Reset IL JMP
6.1 3.1 3.1
12 CNTR Reset IL JMP
25.8 Constant for SV 16.8 12.2 12.2
41.2 *DM for SV
13 DIFU 11.8 Any Shift IL JMP
10.1 12.2 12.2
14 DIFD 11.0 Any Shift IL JMP
10.0 9.9 2.3
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