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Chapter 2. SPECIFICATION S
2 - 16
3) 2-Phase Operation Mode (Multiplicate 1)
When Phase A pulse-input leads Phase B, the counter performs increment count when phase B
pulse-input leads phase A, it performs decrement count.
If Phase B pulse input is low when Phase A pulse input rises, the counter performs increment
count.
If Phase B pulse input is low when phase A pulse input falls, it performs decrement count.
4) 2-Phase Operation Mode (Multiplicate 2)
When Phase A pulse-input leads Phase B, the counter performs increment count when phase B
pulse-input leads phase A, it performs decrement count.
If Phase B pulse input is low when Phase A pulse input rises or it is high when phase A pulse
input falls, the counter performs increment count.
If Phase B pulse input is high when Phase A pulse input rises or it is low when phase A pulse
input falls, the counter performs decrement count.
A-phase pulse
input
Counter
v a l u e
B-phase pulse
input
Decrement
Increment
A-phase pulse
input
Counter
v a l u e
B-phase pulse
input
Decrement
Increment