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Section 17 Flash Memory (0.18-(m F-ZTAT Version)
Rev. 3.00 Mar. 14, 2006 Page 614 of 804
REJ09B0104-0300
Set FKEY to H'A5
DPFR
=
0 ?
Yes
No
Download error processing
Set the FPEFEQ
parameter
Initialization
JSR FTDAR setting
+
32
Yes
End programming
procedure program
FPFR
=
0 ?
No
Initialization error processing
Disable interrupts
and bus master operation
other than CPU
Clear FKEY to 0
Set parameter to ER0 and
ER1 (FMPAR and FMPDR)
Programming
JSR FTDAR setting
+
16
Yes
FPFR
=
0 ?
No
Yes
Required data
programming is
completed?
No
Set FKEY to H'5A
Clear FKEY to 0
Download
Initialization
Programming
MAT
switchover
MAT
switchover
Set FMATS to value
other than H'AA
to select user MAT
Set SCO to 1 after initializing
VBR and execute download
Clear FKEY and programming
error processing
Set FMATS to H'AA to
select user boot MAT
User-boot-MAT selection state
User-MAT selection state
User-boot-MAT
selection state
Note: The MAT must be switched by FMATS
to perform the programming error
processing in the user boot MAT.
Start programming
procedure program
Select on-chip program
to be downloaded and
specify download
destination by FTDAR
1
1
Figure 17.14 Procedure for Programming User MAT in User Boot Mode
In user boot mode, though the user boot MAT can be seen in the flash memory space, the user
MAT is hidden in the background. Therefore, the user MAT and user boot MAT are switched
while the user MAT is being programmed. Because the user boot MAT is hidden while the user
MAT is being programmed, the procedure program must be executed in an area other than flash
memory. After programming completes, switch the memory MATs again to return to the first
state.
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