Renesas H8S Series Hardware Manual page 796

Section 21 Flash Memory (0.18-µm F-ZTAT Version)
Initial
Bit Bit Name Value
0 SCO 0
Note: This bit is a write only bit. This bit is always read as 0.
*
Rev. 3.00 Jul. 14, 2005 Page 748 of 986
REJ09B0098-0300
R/W Description
(R)/W* Source Program Copy Operation
Requests the on-chip programming/erasing program to
be downloaded to the on-chip RAM. When this bit is set
to 1, the on-chip program which is selected by
FPCS/FECS is automatically downloaded in the on-chip
RAM specified by FTDAR. In order to set this bit to 1,
H'A5 must be written to FKEY and this operation must be
executed in the on-chip RAM.
Immediately after setting this bit to 1, four NOP
instructions must be executed. Since this bit is cleared to
0 when download is completed, this bit cannot be read as
1. All interrupts must be disabled during downloading.
Interrupts must be masked within the user system.
0: Download of the on-chip programming/erasing
program to the on-chip RAM is not executed.
[Clearing condition]
When download is completed
1: Request to download the on-chip programming/erasing
program to the on-chip RAM has occurred.
[Setting conditions]
When all of the following conditions are satisfied and this
bit is set to 1
•
H'A5 is written to FKEY
•
During execution in the on-chip RAM