GMS30004 Datasheet, PDF (138/158 Pages) Hynix Semiconductor – 4-BIT SINGLE CHIP MICROCOMPUTERS

ë Appendix E Magic- a
1. Function
1) Stand-by
Oscillation is stop
Output of D0~D5, D8, D9 is ÌLÌ, Output of D6~D7 is ÌHÌ
2) Condition of stand-by mode
After reset
When scan strobe output is over, there is not any key input.
3) Release of stand-by mode
One of the key scan input (K0~K3, R0~R3) is change to ÌLÌ level
E-2