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MB90580C Datasheet(PDF) 75 Page - Fujitsu Component Limited.

Part No. MB90580C
Description  16-bit Proprietary Microcontroller
Download  110 Pages
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Manufacturer  FUJITSU [Fujitsu Component Limited.]
Direct Link  http://edevice.fujitsu.com/fmd/en/index.html
Logo FUJITSU - Fujitsu Component Limited.

MB90580C Datasheet(HTML) 75 Page - Fujitsu Component Limited.

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MB90580C Series
75
20. One-Megabit Flash Memory
The 1Mbit flash memory is allocated in the FEH to FFH banks on the CPU memory map. Like masked ROM,
flash memory is read-accessible and program-accessible to the CPU using the flash memory interface circuit.
The flash memory can be programmed/erased by the instruction from the CPU via the flash memory interface
circuit. The flash memory can therefore be reprogrammed (updated) while still on the circuit board under
integrated CPU control, allowing program code and data to be improved efficiently.
Note that sector operations such as “enable sector protect” cannot be used.
Features of 1Mbit flash memory
• 128K words x 8 bits or 64K words x 16 bits (16K + 8K x 2 + 32K + 64K) sector configuration
• Automatic program algorithm (Embedded Algorithm*: Same as the MBM29F400TA)
• Erasure suspend/resume function integrated
• Detection of programming/erasure completion using the data polling or toggle bit
• Detection of programming/erasure completion using CPU interrupts
• Compatible with JEDEC standard commands
• Capable of erasing data sector by sector (arbitrary combination of sectors)
• Minimum number of times of programming/erasure: 10,000
* : Embedded Algorithm is a trademark of Advanced Micro Devices, Inc.
(1) Register configuration
• Flash memory control status register
bit
7
6543210
Address
: 0000AEH
INTE
RDY-
INT
WE
RDY Reserved LPM1 Reserved LPM0
FMCS
Access
(R/W)
(R/W)
(R/W)
(R)
(W)
(R/W)
(W)
(R/W)
Initial value
(0)
(0)
(0)
(X)
(0)
(0)
(0)
(0)


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