3069RF-ZTAT Datasheet, PDF (613/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Since this bit is cleared to 0 when download is completed, this bit cannot be read as 1.
All interrupts are prohibited during programming and erasing. Interrupts must not occur in the
user system.
Bit 0
SCO
0
1
Description
Download of the on-chip programming/erasing program to the on-chip RAM is not
executed
(Initial value)
[Clear condition] When download is completed
Request that the on-chip programming/erasing program is downloaded to the on-
chip RAM is occurred
[Clear conditions] When all of the following conditions are satisfied and 1 is written
to this bit
• FKEY is written to H'A5
• During execution in the on-chip RAM
• Not in RAM emulation mode (RAMS in RAMCR = 0)
(2) Flash Program Code Select Register (FPCS)
FPCS selects the on-chip programming program to be downloaded.
Bit :
7
6
5
4
3
2
1
0
—
—
—
—
—
—
—
PPVS
Initial value :
0
0
0
0
0
0
0
0
R/W :
R
R
R
R
R
R
R
R/W
Bits 7 to 1—Reserved: These bits are always read as 0. The write value should always be 0.
Bit 0—Program Pulse Verify (PPVS): Selects the programming program.
Bit 0
PPVS
0
1
Description
On-chip programming program is not selected
[Clear condition] When transfer is completed
On-chip programming program is selected
(Initial value)
Rev. 5.0, 09/04, page 591 of 978