Figure 3.30A/B Phase 2X, No Reload, Count Once - Advantech APAX-5013 User Manual

A/B Phase 2X, No Reload, Count Once
Figure 3.16 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) but won't
keep counting.
Ch0_A
Ch0_B
Counter 0
Enable
Counter 0
Value
Counter0
Overflow
Ch0_A
Ch0_B
Counter 0
Enable
Counter 0
Value
Counter0
Underflow
APAX-5000 I/O Series User Manual
0x33 0x32 0x31 0x32
0x33 0x34 0x35
Figure 3.30 A/B Phase 2X, No Reload, Count Once
.........
0x33 0x34
.........
0x34 0x33 0x00
74
0xF..F 0x00
0xFFFFFFFF