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H8SX/1663M Datasheet(PDF) 1190 Page - Renesas Technology Corp

Part # H8SX/1663M
Description  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1504 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX/1663M Datasheet(HTML) 1190 Page - Renesas Technology Corp

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Section 25 Flash Memory
Rev. 2.00 Sep. 24, 2008 Page 1158 of 1468
REJ09B0412-0200
(2)
User MAT Programming in User Boot Mode
Figure 25.16 shows the procedure for programming the user MAT in user boot mode.
The difference between the programming procedures in user program mode and user boot mode is
the memory MAT switching as shown in figure 25.16. For programming the user MAT in user
boot mode, additional processing made by setting FMATS is required: switching from the user
boot MAT to the user MAT, and switching back to the user boot MAT after programming
completes.
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'A5
Clear FKEY to 0
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
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 25.16 Procedure for Programming User MAT in User Boot Mode



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