Datasheet

Section 22 Flash Memory
R01UH0309EJ0500 Rev. 5.00 Page 1187 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
(6) Transition to Programming/Erasing State
The boot program will transfer the erasing program, and erase data of the user ROMs. On
completion of this erasure, ACK will be returned and the programming/erasing state will be
entered.
The host should select the device code, clock mode, and new bit rate with device selection, clock-
mode selection, and new bit-rate selection commands, and then send the command for the
transition to programming/erasing state. These procedures should be carried out before sending of
the programming selection command or program data.
Command H'40
Command, H'40, (1 byte): Transition to programming/erasing state
Response H'06
Response, H'06, (1 byte): Response to transition to programming/erasing state
The boot program will send ACK when the user ROM has been erased by the transferred
erasing program.
Error Response H'C0 H'51
Error code, H'51, (1 byte): Erasure error
An error occurred and erasure was not completed.