479
CHAPTER 23 2M/3M BIT FLASH MEMORY
23.2 Sector Configuration of 2M/3M Bit Flash Memory
This section describes the sector configuration of the 2M/3M bit flash memory.
■
Sector configuration
Figure 23.2-1 shows the sector configuration of the 2M/3M bit flash memory. The addresses in
the figure indicate the upper and lower addresses of each sector.
To access from the CPU, SA0 is allocated in the FC bank register, SA1 is allocated in the FD
bank register, SA2 is allocated in the FE bank register, and SA3 to 6 are allocated in the FF
bank register.
Figure 23.2-1 Sector Configuration of 2M/3M Bit Flash Memory
❍
Writer address
The writer address shown in Figure 23.2-1 is the address corresponding to the CPU address
when data is written to the flash memory with a parallel programmer. When using a general-
purpose programmer for write/erase operations, this address is used for write/erase operations.
2M bits flash memory
CPU address
Writer address
SA6 (16K bytes)
SA5 ( 8K bytes)
SA4 ( 8K bytes)
SA3 (32K bytes)
SA2 (64K bytes)
SA1 (64K bytes)
SA0 (64K bytes)
FFFFFF
H
FFC000
H
FFBFFF
H
FFA000
H
FF9FFF
H
FF8000
H
FF7FFF
H
FF0000
H
FEFFFF
H
FE0000
H
FDFFFF
H
FD0000
H
FCFFFF
H
FC0000
H
7FFFF
H
7C000
H
7BFFF
H
7A000
H
79FFF
H
78000
H
77FFF
H
70000
H
6FFFF
H
60000
H
5FFFF
H
50000
H
4FFFF
H
40000
H
3M bits flash memory
CPU address
Writer address
SA8 (16K bytes)
SA7 ( 8K bytes)
SA6 ( 8K bytes)
SA5 (32K bytes)
SA4 (64K bytes)
SA3 (64K bytes)
Unused
SA2 (64K bytes)
SA1 (64K bytes)
SA0 (64K bytes)
Unused
FFFFFF
H
FFC000
H
FFBFFF
H
FFA000
H
FF9FFF
H
FF8000
H
FF7FFF
H
FF0000
H
FEFFFF
H
FE0000
H
FDFFFF
H
FD0000
H
FCFFFF
H
FC0000
H
FBFFFF
H
FB0000
H
FAFFFF
H
FA0000
H
F9FFFF
H
F90000
H
F8FFFF
H
F80000
H
7FFFF
H
7C000
H
7BFFF
H
7A000
H
79FFF
H
78000
H
77FFF
H
70000
H
6FFFF
H
60000
H
5FFFF
H
50000
H
4FFFF
H
40000
H
3FFFF
H
30000
H
2FFFF
H
20000
H
1FFFF
H
10000
H
0FFFF
H
00000
H
Summary of Contents for MB90480 Series
Page 2: ......
Page 4: ......
Page 10: ...vi ...
Page 128: ...106 CHAPTER 4 RESET ...
Page 174: ...152 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Page 198: ...176 CHAPTER 7 MODE SETTING ...
Page 220: ...198 CHAPTER 9 TIMEBASE TIMER ...
Page 238: ...216 CHAPTER 11 WATCH TIMER ...
Page 280: ...258 CHAPTER 12 16 BIT INPUT OUTPUT TIMER ...
Page 406: ...384 CHAPTER 17 8 10 BIT A D CONVERTER ...
Page 478: ...456 CHAPTER 20 CHIP SELECTION FACILITY ...
Page 494: ...472 CHAPTER 21 ADDRESS MATCH DETECTION FUNCTION ...
Page 498: ...476 CHAPTER 22 ROM MIRROR FUNCTION SELECTION MODULE ...
Page 526: ...504 CHAPTER 23 2M 3M BIT FLASH MEMORY ...
Page 536: ...514 CHAPTER 24 EXAMPLES OF MB90F481B MB90F482B MB90F488B MB90F489B SERIAL PROGRAMMING ...
Page 570: ...548 CHAPTER 25 PWC TIMER ONLY MB90485 SERIES ...
Page 688: ......