newBitWidth(bitWidth) {
        if (this.fixedBitWidth) return;
        if (this.bitWidth === undefined) return;
        if (this.bitWidth < 1) return;
        this.bitWidth = bitWidth;
        for (let i = 0; i < this.nodeList.length; i++) { this.nodeList[i].bitWidth = bitWidth; }
    }
Method to change object Bitwidth
OVERRIDE if necessary
@param {number} bitWidth - new bitwidth