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H8/3021 Datasheet(PDF) 623 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 623 Page - Renesas Technology Corp

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Appendix B. Internal I/O Register Field
Rev.2.00 Mar. 22, 2007 Page 599 of 684
REJ09B0352-0200
RAMER—RAM Emulation Register
H'47
Flash Memory
Bit 3
Bit 2
Bit 1
RAMS RAM2 RAM1
RAM Area
0
1
*
0
1
Bit 0
RAM0
*
0
1
0
1
0
1
0
1
*
0
1
0
1
H'FFFFE000 to H'FFFFEFFF
H'00000000 to H'00000FFF
H'00001000 to H'00001FFF
H'00002000 to H'00002FFF
H'00003000 to H'00003FFF
H'00004000 to H'00004FFF
H'00005000 to H'00005FFF
H'00006000 to H'00006FFF
H'00007000 to H'00007FFF
RAM select, RAM2, RAM1, RAM0
Note:
*: Don’t care.
This register is used only in the flash memory versions.
Reading the corresponding address in a mask ROM version will always return
1s, and writes to this address are disabled.
Bit
7
—
RAMS
65
4
3
2
1
0
———
RAM2
RAM1
RAM0
1
R
1
R
1
R
1
R
0
R/W
0
R/W
0
R/W
0
R/W
Initial value
R/W



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