R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 648

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 17 Flash Memory (0.18-(m F-ZTAT Version)
(3)
The procedures for download of the on-chip program, initialization, and erasing are shown in
figure 17.12.
Rev. 3.00 Mar. 14, 2006 Page 610 of 804
REJ09B0104-0300
Erasing Procedure in User Program Mode
Set SCO to 1 after initializing
VBR and execute download
Select on-chip program
Start erasing procedure
to be downloaded and
destination by FTDAR
JSR FTDAR setting
specify download
Set FKEY to H'A5
Set the FPEFEQ
Clear FKEY to 0
FPFR
DPFR
parameter
program
Initialization
1
Yes
Yes
Figure 17.12 Erasing Procedure in User Program Mode
0 ?
0?
Initialization error processing
Download error processing
32
No
No
1.
No
JSR FTDAR setting
Disable interrupts and
bus master operation
Set FEBS parameter
Clear FKEY to 0
procedure program
Set FKEY to H'5A
other than CPU
Required block
End erasing
FPFR
completed?
erasing is
Erasing
1
Yes
Yes
0?
Clear FKEY and erasing
16
error processing
No
2.
3.
4.
5.
6.