Table 2-10 Counter Clock Source Control Bit; Table 2-11 Counter Internal Clock Control Bit - Advantech UNO-2050 User Manual

Counter clock source
There are two clock sources available for the user counters by setting
counter clock control bits - CTR0CLKSet and CTR1CLKSet.

Table 2-10 Counter clock source control bit

Counter clock control bit
CTR0CLKSet
CTR1CLKSet
Counter internal clock
There are four frequency options to choose according to applications,
and it's set by internal clock control bits - S0 and S1.

Table 2-11 Counter internal clock control bit

S1
0
0
1
1
0
1
0
1
S0
0
1
0
1
Chapter 2 Hardware Functionality
Internal clock (default)
External clock from digital
input 6 (DI6) channel
Internal clock (default)
External clock from digital
input 7 (DI7) channel
Time base
100KHz (default)
10 KHz
1 KHz
100 Hz
2 1