Syntax
# Has two variants:
BCD_RIPPLE_COUNTER {[Subcircuit-label-n] [label-n]}
BCD_RIPPLE_COUNTER_ALT {[Subcircuit-label-n] [label-n]}
# The second variant is a straightforward
# implementation with a 4-Bit Ripple Counter with
# a cascade extension and the first
# variant is a more complex implementation
# Where, the Subcircuit labels are T, RST, Q(0-3)
# All Subcircuit labels are mandatory
# Order is arbitrary
Example
BCD_RIPPLE_COUNTER T clk T t Q0 q0 Q1 q1 Q2 q2 Q3 q3
# T: Count enable,
# RST: Active-low asynchronous reset input,
# Q(0-3): Count output
Performs BCD (Binary Coded Decimal) counting (from 0 to 9), timed by the count(clock) input. Particularly used in displays, where more sections of the counter are cascaded to represent the tenth, hundredth positions and so on.