8-2
Section
CPM2A/CPM2C Cycle Time and I/O Response Time
528
In addition to the response time shown above, the time required for executing
the interrupt processing routine itself and a return time of 30
µ
s must also be ac-
counted for when returning to the process that was interrupted.
8-2-5 CPM2A/CPM2C Instruction Execution Times
The following table lists the execution times for CPM2A/CPM2C (including the
CPM2C-S) instructions.
Basic Instructions
Code
Mnemonic
ON execution
i
(
)
Conditions (Top: min.; bottom: max.)
OFF execution time (
µ
s)
time (
µ
s)
(
p
;
)
RSET
IL
JMP
---
---
LD
LD NOT
0.64
Any
---
---
---
---
---
AND
AND NOT
OR
OR NOT
0.52
---
---
AND LD
OR LD
0.26
---
---
OUT
OUT NOT
1.88
---
SET
2.58
---
RSET
---
TIM
4.76
Constant for SV
7.8
7.6
2.9
DM for SV
15.6
15.4
2.9
---
CNT
4.50
Constant for SV
6.8
2.9
3.1
DM for SV
14.5
2.9
3.1
Special Instructions
Code
Mnemonic
ON execution
time (
µ
s)
Conditions (Top: min.; bottom: max.)
OFF execution time (
µ
s)
00
NOP
0.15
Any
01
END
6.2
y
02
IL
1.1
2.1
03
ILC
1.6
1.6
04
JMP
0.95
1.8
05
JME
2.1
2.1
06
FAL
20.5
2.5
07
FALS
2.9
2.5
08
STEP
7.3
6.0
09
SNXT
5.1
3.6
10
SFT
Reset
IL
JMP
10.4
With 1-word shift register
9.2
0.98
0.98
15.3
With 10-word shift register
11.9
1.0
1.0
39.6
With 53-word shift register
26.2
1.0
1.0
11
KEEP
3.2
Any
Reset
IL
JMP
3.1
1.2
1.3
12
CNTR
Reset
IL
JMP
10.9
Constant for SV
7.9
5.5
5.6
18.8
DM for SV
13
DIFU
5.5
Any
Shift
IL
JMP
y
5.1
4.8
0.96
14
DIFD
5.3
Any
Shift
IL
JMP
y
5.4
4.7
0.97
