/* 1. header * 2. SRC_ADDR_LO or DATA [31:0] * 3. CP_SYNC [31] | SRC_SEL [30:29] | ENGINE [27] | DST_SEL [21:20] | * SRC_ADDR_HI [7:0] * 4. DST_ADDR_LO [31:0] * 5. DST_ADDR_HI [7:0] * 6. COMMAND [29:22] | BYTE_COUNT [20:0] */ /* 1. header * 2. SRC_ADDR_LO or DATA [31:0] * 3. CP_SYNC [31] | SRC_SEL [30:29] | ENGINE [27] | DST_SEL [21:20] | * SRC_ADDR_HI [7:0] * 4. DST_ADDR_LO [31:0] * 5. DST_ADDR_HI [7:0] * 6. COMMAND [30:21] | BYTE_COUNT [20:0] */