Datasheet

Section 7 ROM
Page 194 of 982 REJ09B0465-0300 Rev. 3.00
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
• Error response H'C0 (1 byte): Error response to the programming/erasure state transition
command.
• Error code H'51 (1 byte): Erasure error indicating that erasure was unsuccessful because of an
error.
(6) Programming/Erasure State Transition (With ID Checking)
In response to a programming/erasure state transition command, the boot program checks the ID
code if the location of user ROM indicated in table 7.6 contains a control code (H'52 or H'45).
Command H'40
• Command H'40 (1 byte): Programming/erasure state transition
Response H'16
• Response H'16 (1 byte): Response to a programming/erasure state transition command (with
ID checking).
Table 7.6 Address of the Protection Code for the User ROM Area
H'000004 H'000005 H'000006 H'000007 H'000010 H'000011 H'000012 H'000013
Boot
mode
Control
code
Authentication ID (56 bits)
(7) ID Checking
After the response to the command for the transition with ID checking, the command for ID
checking and ID code against which the actual ID code is to be checked are sent from the host.
Command H'60 Size ID (16 bytes) SUM
• Command H'60 (1 byte): ID Checking
• Size (1 byte): The number of bytes of transmitted data, excluding the command, size, and
checksum fields (fixed to H'10).