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MF832M-GMCAVXX Datasheet(PDF) 6 Page - Mitsubishi Electric Semiconductor |
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MF832M-GMCAVXX Datasheet(HTML) 6 Page - Mitsubishi Electric Semiconductor |
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6 / 22 page  MITSUBISHI MEMORY CARD FLASH MEMORY CARDS MITSUBISHI ELECTRIC 6/22 Feb.1999 Rev2.0 Erase Suspend/Erase Resume The erase suspend command B0h (B0B0h for 16 bit operation) is a command to generate erase interruption and to read data from another block of selected memory zone. By writing in the control register erase resume command D0h (D0D0h for 16 bit operation), the memory block will continue the erase operation. These commands must be executed in erase algorithm. (For details please refer to the algorithm) Read Status Register The Read status register is a command to read the status register ’ s data and to make sure programme or erase operations complete successfully. The data of status register can be read after writing 70h (7070h for 16 bit operation) in the control register. The register ’ s read data is latched on the falling edge of OE#. At programme or erase, the status register ’ s data must be read to verify the results. Clear Status Register The clear status register command will clear data of status register. It is applied when 50h (5050h for 16 bit operation) is written to the control register. If an error occurred during programme or erase, the status register must be cleared before retrying programme or erase. Read Device Identifier Codes The read device identifier codes command is implemented by writing 90h (9090h for 16 bit operation) to the command register. After writing the command, manufacturer code can be read at the address of 000000h of the zone and device code can be read at the address 000002h of the zone. Each card uses the same type of memory throughout and each memory zone will respond the same code. (Do not apply high voltage to A10 pin in order to try and read the device identifier codes as this will result in the card being destroyed.) STATUS REGISTER When operating programme or erase, it is necessary to read status register data and to transact these bit. Each memory IC used in this card has internal status register to make sure programme or erase operations complete successfully. 7 (15) BIT 6 (14) BIT 5 (13) BIT 4 (12) BIT 3 (11) BIT 2 (10) BIT 1,0 (9,8) BIT Programme/ Erase Status Bit Erase Suspend Bit Erase Error Bit Programme Error Bit Vcc Error Bit Programme Suspend Bit Reserved Note 4: ( ) ; for 16 bit operation Bit ; Field name Bit ; Field name 7(15) BIT ; Programme/Erase Status Bit 6(14) BIT ; Erase Suspend Bit 0=Busy (in programming/erasing) 1=Ready 1=Erase Suspended 5(13) BIT ; Erase Error Bit 4(12) BIT ; Programme Error Bit 1=Erase Error 1=Programme Error 3(11) BIT ; Vcc Error 2(10) BIT ; Programme Suspend Bit 1=Error of voltage at Vcc 1=Programme Suspended 1,0(9,8) BIT ; Reserved for future |
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Similar Description - MF832M-GMCAVXX |
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