TXZ Family
Flash Memory
2018-06-05
88 / 120
Rev. 2.0
6.5.2.4. Step-4
The device jumps to the programming routine on the RAM to release the program/erase protection for the old
application program, and to erase the flash (the units of erase is arbitrary size).
Figure 6.10 Procedure that a Programming Routine is Transferred from External Host (4)
6.5.2.5. Step-5
The device continues to execute the programming routine (c) on the RAM to download new program data from the
host controller and programs it into the erased flash blocks. When the programming is completed, set the
program/erase protection of that flash area in the user’s program to ON.
Figure 6.11 Procedure that a Programming Routine is Transferred from External Host (5)