Chapter 2.
SPECIFICATION S
3) 2 - Phase Operation Mo d e ( 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.
A - p h a s e p u l s e
i n p u t
B - p h a s e p u l s e
i n p u t
C o u n t e r
v a l u e
4) 2-Phase Operation Mo d e ( 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 - p h a s e p u l s e
i n p u t
B - p h a s e p u l s e
i n p u t
C o u n t e r
v a l u e
I n c r e m e n t
I n c r e m e n t
2 - 16
D e c r e m e n t
D e c r e m e n t