[Learn] programming Embedded System: Resources

Field-programmable gate array [Wikipedia]

Application-specific integrated circuit [Wikipedia]

Index registers [Wikipedia]

Index registers are used to keep track of a list of string(data, not type). LOAD_INDEX: 400, index2 (load index 400 into register index2)

Prescaler

It permit to reduce frequency of the CPU. Because sometimes the clock frequency is to high for your purpose

Binary-coded decimal [Wikipedia]

Representation of decimal from binary (1 bit = 1 digit)

Half carry [Wikipedia]

Indicates a bit carry but in the 4 least significant bits.