24/24 base counter circuit design

As shown in the figure is a 24/24 base counter. This timer is based on the hundred base system and uses the feedback zeroing method to form a 24 base counter. The counting range is digital 0-digit 23, and digital 24 is the transition state. When the high-order count reaches the number 2 and the low-order counter reaches the number 4, the counter returns to zero. Connect Q20 and Q11 directly to R0A and R0B to form a 24-decimal counter.