MX66L51235FMI-10G datasheet(78/83 Pages) MCNIX

78 / 83 page

MX66L51235F

Rev. 1.1, August 02, 2016

P/N: PM1832

9-35. Program/Erase Suspend/Resume

The device allow the interruption of Sector-Erase, Block-Erase or Page-Program operations and conduct other

operations.

After issue suspend command, the system can determine if the device has entered the Erase-Suspended mode

through Bit2 (PSB) and Bit3 (ESB) of security register. (please refer to "Table 9. Security Register Definition")

The latency time of erase operation :

Suspend to suspend ready timing: 20us.

Resume to another suspend timing: 1ms.

Both SPI (8 clocks) and QPI (2 clocks) command cycle can accept by this instruction. The SIO[3:1] are don't care

when during SPI mode.

9-36. Erase Suspend

Erase suspend allow the interruption of all erase operations. After the device has entered Erase-Suspended mode,

the system can read any sector(s) or Block(s) except those being erased by the suspended erase operation.

Reading the sector or Block being erase suspended is invalid.

After erase suspend, WEL bit will be clear, only read related, resume and reset command can be accepted. (including:

03h, 0Bh, 3Bh, 6Bh, BBh, EBh, 5Ah, C0h, 06h, 04h, 2Bh, 9Fh, AFh, 05h, ABh, 90h, B1h, C1h, B0h, 30h, 66h, 99h,

00h, 35h, F5h, 15h, 2Dh, 27h, A7h, E2h, E0h, 16h)

If the system issues an Erase Suspend command after the sector erase operation has already begun, the device

will not enter Erase-Suspended mode until 20us time has elapsed.

Erase Suspend Bit (ESB) indicates the status of Erase Suspend operation. Users may use ESB to identify the state

of flash memory. After the flash memory is suspended by Erase Suspend command, ESB is set to "1". ESB is

cleared to "0" after erase operation resumes.

9-37. Program Suspend

Program suspend allows the interruption of all program operations. After the device has entered Program-

Suspended mode, the system can read any sector(s) or Block(s) except those being programmed by the suspended

program operation. Reading the sector or Block being program suspended is invalid.

After program suspend, WEL bit will be cleared, only read related, resume and reset command can be accepted.

(including: 03h, 0Bh, 3Bh, 6Bh, BBh, EBh, 5Ah, C0h, 06h, 04h, 2Bh, 9Fh, AFh, 05h, ABh, 90h, B1h, C1h, B0h, 30h,

66h, 99h, 00h, 35h, F5h, 15h, 2Dh, 27h, A7h, E2h, E0h, 16h)

Program Suspend Bit (PSB) indicates the status of Program Suspend operation. Users may use PSB to identify the

state of flash memory. After the flash memory is suspended by Program Suspend command, PSB is set to "1". PSB

is cleared to "0" after program operation resumes.

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