Memory devices and methods facilitate initiation and termination of boot data output from a memory device through the use of received commands. For example, boot data output is initiated in response to a command indicative of a desire to enter a boot mode of operation. The initiate boot command may include a base command and a unique argument indicative of a desire to enter the boot mode of operation. Boot data output may be terminated by a received command indicative of a desire to terminate the boot mode of operation. The terminate boot command may include the same base command as the initiate boot command with any argument other than the argument indicative of a desire to enter the boot mode of operation.