Can a master deassert HLOCK during a burst?
Applies to: AHB The AHB specification requires that all address phase timed control signals (other than HADDR and HTRANS) remain constant for the duration of a burst. Although HLOCK is not an address phase timed signal, it does directly control the HMASTLOCK signal which is address phase timed. Therefore HLOCK must remain high for the duration of a burst, and can only be deasserted such that the following HMASTLOCK signal changes after the final address phase of the burst. FROM: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/597.