r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 967
r5f71374an80fpv
Manufacturer Part Number
r5f71374an80fpv
Description
32-bit Risc Microcomputer Superh?? Risc Engine Family
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5F71374AN80FPV.pdf
(1154 pages)
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Figure 22.18 shows an example of an overlap on block area EB0 of the flash memory.
Emulation is possible for a single area selected from among the eight areas, from EB0 to EB7, of
the user MAT. The area is selected by the setting of the RAM2 to RAM0 bits in RAMER.
1. To overlap a part of the RAM on area EB0, to allow realtime programming of the data for this
2. Realtime programming is carried out using the overlaid area of RAM.
In programming or erasing the user MAT, it is necessary to run a program that implements a series
of procedural steps, including the downloading of an on-chip program. In this process, set the
download area with FTDAR so that the overlaid RAM area and the area where the on-chip
program is to be downloaded do not overlap.
Figure 22.19 shows an example of programming data that has been emulated to the EB0 area in
the user MAT.
area, set the RAMS bit in RAMER to 1, and each of the RAM2 to RAM0 bits to 0.
H'3FFFF
H'00000
H'01000
H'02000
H'03000
H'04000
H'05000
H'06000
H'07000
H'08000
Figure 22.18 Example of Overlapped RAM Operation
Flash memory
EB8 to EB11
(user MAT)
EB0
EB1
EB2
EB3
EB4
EB5
EB6
EB7
This area is accessible as both a RAM
area and as a flash memory area.
On-chip RAM
On-chip RAM
Rev. 1.00 Sep. 21, 2007 Page 941 of 1124
H'FFFF8000
H'FFFF9FFF
H'FFFFA000
H'FFFFAFFF
H'FFFFBFFF
Section 22 Flash Memory
REJ09B0402-0100
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