R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 636
R5F61525
Manufacturer Part Number
R5F61525
Description
32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R5F61525.pdf
(846 pages)
- Current page: 636 of 846
- Download datasheet (6Mb)
Section 17 Flash Memory (0.18-(m F-ZTAT Version)
17.7.3
RAMER specifies the user MAT area overlaid with part of the on-chip RAM (H'FFA000 to
H'FFAFFF) when performing emulation of programming the user MAT. RAMER should be set in
user mode or user program mode. To ensure dependable emulation, the memory MAT to be
emulated must not be accessed immediately after changing the RAMER contents. When accessed
at such a timing, correct operation is not guaranteed.
Rev. 3.00 Mar. 14, 2006 Page 598 of 804
REJ09B0104-0300
Bit
7 to 4
3
2
1
0
Bit
Bit Name
Initial Value
R/W
RAM Emulation Register (RAMER)
Bit Name
RAMS
RAM2
RAM1
RAM0
—
R
7
0
Initial
Value
0
0
0
0
0
—
R
6
0
R/W
R
R/W
R/W
R/W
R/W
—
R
5
0
Description
Reserved
These are read-only bits and cannot be modified.
RAM Select
Selects the function which emulates the flash memory
using the on-chip RAM.
0: Disables RAM emulation function
1: Enables RAM emulation function (all blocks of the
Flash Memory Area Select
These bits select the user MAT area overlaid with the
on-chip RAM when RAMS = 1. The following areas
correspond to the 4-kbyte erase blocks.
000: H'000000 to H'000FFF (EB0)
001: H'001000 to H'001FFF (EB1)
010: H'002000 to H'002FFF (EB2)
011: H'003000 to H'003FFF (EB3)
100: H'004000 to H'004FFF (EB4)
101: H'005000 to H'005FFF (EB5)
110: H'006000 to H'006FFF (EB6)
111: H'007000 to H'007FFF (EB7)
user MAT are protected against programming and
erasing)
—
R
4
0
RAMS
R/W
3
0
RAM2
R/W
2
0
RAM1
R/W
1
0
RAM0
R/W
0
0
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