參數(shù)資料
型號: MB91155
廠商: Fujitsu Limited
英文描述: 32-bit Proprietary Microcontrollers
中文描述: 32位微控制器專有
文件頁數(shù): 71/105頁
文件大?。?/td> 989K
代理商: MB91155
MB91F155A/MB91155/MB91154
71
16. FLASH Memory
The MB91F155A contains a 510-Kbyte (4 Mbits) flash memory. The sectors can be erased all at once or sector
by sector and that can be written with the FR-CPU by half word (16 bits) using a single 0.3 V power supply.
The MB91F155 accomplishes the following functions by a combination of the flash memory macro and the FR-
CPU interface circuit :
Functions as the CPU program/data storage memory :
When used as a ROM, the memory is accessible with a 32-bit bus width.
Allows the CPU to read from/write to/erase the memory (automatic program algorithm*) .
Functions equivalent to the stand-alone MBM29LV400C flash memory product :
Allows a ROM programmer to read from/write to/erase the memory (automatic program algorithm*)
At this time, using the flash memory from the FR-CPU is described. For detailed information about using the
flash memory from the ROM programmer, refer to the ROM programmer instruction manual.
* : Automatic program algorithm
=
Embedded Algorithm
TM
Embedded Algorithm
TM
is a trademark of Advanced Micro Devices, Inc.
Block Diagram
RDY/BUSY
Rising edge detection
Flash memory
Control signal
generation
RESET
BYTE
OE
WE
CE
FA18 - 0
Address buffer
FR-C bus (instructions/data)
Data buffer
CA18 - 0
INTE
I
B
RDYINT
RDY
WE
CD31 - 0
DI15 - 0
DO31 - 0
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