Datasheet

Section 7 ROM
Page 230 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Table 7.15 Specifications for Boot Mode Protection
Control code* Protection State Operation in Serial Connection
Other than
above
Protection is disabled. Entire blocks are deleted.
H'45 ID authentication protection 1*
2
Possible for reading/programming/erasing if
the ID was authenticated.
If the ID was not authenticated, entire blocks
are deleted.
ID authentication protection 2 Possible for reading/programming/erasing if
the ID was authenticated.
If the ID was not authenticated, authentication
is performed again.
H'52
ID authentication protection 2+*
3
If control code is H'52 and the special code
(H'50, H'72, H'6F, H'74, H'65, H'63 and H'74)
is written to the authentication ID bytes,
processing for serial connections will not be
accepted.
Notes: 1. Used together with the control code for the PROM programmer.
2. Re-authentication can be performed up to 3 times in case of error in the ID code.
3. Once this setting has been made, serial connections are not accepted unless a PROM
programmer is used to delete the setting.
7.8 Programmer Mode
In programmer mode, flash memory areas can be programmed/erased using a PROM programmer
via a socket adapter, just as a discrete flash memory can be. Use the PROM programmer that
supports this product.