A method, an apparatus, and a computer program are provided for
controlling a transmission enable (TX_ENA) signal. In Extreme Data Rate
(XDR.TM.) Dynamic Random Access Memories (DRAMs) or XDRAMS, there is a
requirement that a TX_ENA signal remain logic high for a few cycles
before data transmission, and, when TX_ENA transitions to logic low,
TX_ENA remain logic low for a few cycles. However, maintaining this
timing can be difficult with back-to-back writes. Therefore, additional
logic is employed within XDRAM memory controllers to insure that TX_ENA
does not violate system requirements by allowing TX_ENA to remain logic
high between successive writes or when the system is devoid of commands.