1.3.3 COPY SCRATCHPAD Command

This command is used to copy data from the scratchpad to memory. After issuing the COPY SCRATCHPAD command, the host must provide a 3-byte authorization pattern, which can be obtained by reading the scratchpad for verification. This pattern must exactly match the data contained in the three address registers (TA1, TA2, E/S, in that order). If the pattern matches, the Authorization Accepted (AA) flag will be set, and the copy will begin. A copy takes a maximum of 5 ms, during which the voltage on the 1-Wire bus must not fall below 2.8V. A pattern of alternating 1s and 0s will be received after the data has been copied until a Reset Pulse is issued by the host.