Sajid Hussain Ansari wrote:
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Hello,
I am using 03 nos. of 4021 for input port and 03 Nos. 4094 for output port with :
- Common Strobe Line,
- Common Clock Line,
- Separate Data lines for input & Output.
I need separate routines for repeated operations of :
(i) getting data from 4021 &
(ii) outputting data to 4094 terminals

Then you must use:
- Separate Strobe Line,
- Common Clock Line,
- Common line for input & Output.