Figure 3.31A/B Phase 2X, With Reload, Count Once - Advantech APAX-5013 User Manual

A/B Phase 2X, With Reload, Count Once
Figure 3.17 shows A/B Phase 2X mode, Ch0_A and Ch0_B provide the counting
function. When the counter0 is enabled, the couner0 starts to count. If the counter
value is overflow or underflow, it will reset to the defined value (e.g. 0x33) and keep
counting repetitively.
Ch0_A
Ch0_B
Counter 0
Enable
Counter 0
0x33 0x32
Value
Counter0
Overflow
Ch0_A
Ch0_B
Counter 0
Enable
Counter 0
0x33 0x34
Value
Counter0
Underflow
Figure 3.31 A/B Phase 2X, With Reload, Count Once
0x31 0x32 0x33 0x34
.........
0x35 0x34 0x33
75
.........
0xF..F 0x33
0x00 0x33
APAX-5000 I/O Series User Manual