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B
Appendix B READ Instruction/
WRITE Instruction Execution Time
N: Number of words to transfer I/O access time = 3.80
µ
s
Table B-1 MREAD Instruction/MWRITE Instruction Execution Time (
µ
s)
MREAD Instruction
7.36 (4+N) x I/O access time
MWRITE Instruction
7.24 (4+N) x I/O access time
Table B-2
Maximum Execution Time for DN311 Access (ms)
(128 words for input/output)
MREAD Instruction
1.48
MWRITE Instruction
1.48
Total
2.96