h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 417

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

Note: * This bit is a write only bit. This bit is always read as 0.
Bit
0
Bit Name
SCO
Initial
Value
0
R/W
(R)/W*
Description
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.
Four NOP instructions must be executed immediately
after setting this bit to 1.
Since this bit is cleared to 0 when download is
completed, this bit cannot be read as 1.
All interrupts must be disabled. This should be made in
the user system.
0:Download of the on-chip programming/erasing
[Clearing condition]
When download is completed
1: Request that the on-chip programming/erasing
[Setting conditions]
When all of the following conditions are satisfied and 1
is set to this bit
•
•
program to the on-chip RAM is not executed.
program is downloaded to the on-chip RAM is
occurred.
H'A5 is written to FKEY
During execution in the on-chip RAM
Rev. 2.00, 03/04, page 385 of 534