An integrated circuit (IC) can include an interface configured to receive packetized data specifying a programming instruction for a memory external to the integrated circuit over a first communication channel. The first communication channel can be an in-band signaling channel also used by the IC when performing a function independent of programming the memory. The IC can include a buffer having a first port coupled to the interface and a second port. The buffer can be configured to store the programming instruction extracted from the packetized data. The IC also can include a programmer coupled to the second port. The programmer can be configured to program the memory over a second communication channel different from the first communication channel responsive to interpretation of the programming instruction from the buffer.