h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 711
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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Table 20.4 Flash Memory Erase Blocks
20.5.5
RAMER specifies the area of flash memory to be overlapped with part of RAM when emulating
real-time flash memory programming. RAMER initialized to H'00 by a reset and in hardware
standby mode. It is not initialized by software standby mode. RAMER settings should be made in
user mode or user program mode.
Flash memory area divisions are shown in table 20.5. To ensure correct operation of the emulation
function, the ROM for which RAM emulation is performed should not be accessed immediately
after this register has been modified. Normal execution of an access immediately after register
modification is not guaranteed.
Bits 7 and 6—Reserved: These bits always read 0.
Bits 5 and 4—Reserved: Only 0 may be written to these bits.
Block (Size)
EB0 (1 kbyte)
EB1 (1 kbyte)
EB2 (1 kbyte)
EB3 (1 kbyte)
EB4 (28 kbytes)
EB5 (16 kbytes)
EB6 (8 kbytes)
EB7 (8 kbytes)
EB8 (32 kbytes)
EB9 (32 kbytes)
Initial value:
RAM Emulation Register (RAMER)
R/W:
Bit:
—
R
7
0
—
R
6
0
Addresses
H'000000 to H'0003FF
H'000400 to H'0007FF
H'000800 to H'000BFF
H'000C00 to H'000FFF
H'001000 to H'007FFF
H'008000 to H'00BFFF
H'00C000 to H'00DFFF
H'00E000 to H'00FFFF
H'010000 to H'017FFF
H'018000 to H'01FFFF
R/W
—
5
0
R/W
—
4
0
Rev. 5.00 Sep 22, 2005 page 685 of 1136
RAMS
R/W
3
0
RAM2
R/W
2
0
REJ09B0257-0500
Section 20 ROM
RAM1
R/W
1
0
RAM0
R/W
0
0
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