Introduction to Script 4

The minimum unit for erasing, writing, and reading NAND Flash Memory (hereinafter referred to as NAND) is as follows due to its structure.

ERASE	Batch erase in blocks
PROGRAM	Page unit (data section + redundant section)
READ	Page unit (data section + redundant section)

The related commands above are introduced below.

Several types of commands are available depending on the application, and it also supports multi-chip and multi-plane.

Please see the SigNAS3 Operational Guide for more information,

The following three types of program patterns can be specified using parameters.

INCRMT	increment pattern
RANDOM	pseudorandom pattern
BUFFER	Buffer pattern (pattern file prepared in advance by the user)

BLOCK unit・・・Programs the specified block.

BKPROG	Block Program
BKPGMC	Block Program MultiChip Target chips are specified using bitmap-compatible parameters.
BKPMPx	Block Program MultiPlane Programs all pages in a total of x blocks in different planes specified by parameters.
BPMCPx	Block Program MulitiChip MultiPlane

In addition to the above PageProgram pattern, it is possible to set the following 3 types of program patterns, for a total of 6 types.

ICROVL	Increment pattern (pattern initialization is performed at the beginning of every page)
RDMOVL	Pseudo-random pattern (seed initialization performed at the beginning of every page)
BUFATA	Buffer pattern (assign buffer 0000 to Page0, buffer 143F to Page5183)

READ command

PAGE unit・・・Reads the specified page. No data transfer is performed.

PGREAD	Page Read
PEREAD	Page Read with Extend Address It can be specified an extended address.
PGRMPx	Page Read MultiPlane Reads pages in a total of x blocks in different planes specified by parameters.
PERMPx	Page Read MultiPlane + Extend Addresss It works similar to PGRMPx, but allows you to specify extended addresses.
PGRDDM	Page Read and Dump It reads the specified page and saves the read data to Dump File.
PGRDCP	Page Read and Compe It reads the specified page and compares it to the specified pattern. Save the location of the mismatch and the comparison result (XOR value, where the mismatched bit is represented by a 1) in a Compare File.

The following three types of comparison patterns can be specified using parameters.

INCRMT	increment pattern
RANDOM	pseudorandom pattern
BUFFER	Buffer pattern (pattern file prepared in advance by the user)

PERDDCP	Page Read and Compare with Extended Address It works similar to PGRDCP, but allows you to specify extended addresses.
PGRDEC	Page Read and Error Count It reads the specified page, compares it with the specified pattern, and counts the number of errors. Save error count results to Error Count File.

In addition to the 3 types of PGRDCP mentioned above, you can specify 5 types of comparison patterns, including the following 2 types, using parameters.

ICROVL	Compatible with Block Program ICROVL
RDMOVL	Compatible with Block Program RDMOVL

PERDEC	Page Read and Error Count with Extended Address It works similar to PGRDEC, but you can specify an extended address.
PGDUMP	Page Dump It gets the NAND cache data and saves it to Dump File.
PGCOMP	Page Compare It gets NAND cache data and compares it with the specified pattern.
PGSRDM	Page Softbit Read and Dump It reads the soft bit of the specified page and saves the read data to Dump File.
PESRDM	Page Softbit Read and Dump with Extend address

BLOCK unit・・・Read all pages of the specified block.

BKREAD	Block Read
BEREAD	Block Read with Extend Address It works similar to BKREAD, but allows you to specify an extended address.
BKRDDM	Block Read and Dump It reads all pages of the specified block and saves the read data to Dump File.
BERDDM	Block Read and Dump with Extend Address It works similar to BKRDDM, but you can specify an extended address.
BKRDCP	Block Read and Compare It reads all pages of the specified block and compares them with the specified pattern. Save the location of the mismatch and the comparison result (XOR value, where the mismatched bit is represented by a 1) in a Compare File.

The following six types of comparison patterns can be specified using parameters.

INCRMT	Increment pattern (pattern initialization is performed at the beginning of every page)
ICROVL	Increment pattern (pattern initialization is performed at the beginning of the first page of the block)
RANDOM	Pseudo-random pattern (pattern initialization is performed at the top of every page)
RDMOVL	Pseudo-random pattern (pattern initialization is performed at the beginning of the first page of the block)
BUFFER	Buffer pattern
BUFATA	Buffer pattern (assign buffer 0000 to Page0, buffer 143F to Page5183)

BERDCP	Block Read and Compare with Extend Address It works similar to BKRDCP, but allows you to specify extended addresses.
BKRDEC	Block Read and Error Count It reads all pages of the specified block, compares with the specified pattern, and counts the number of errors. Save error count results to Error Count File.
BERDEC	Block Read and Error Count with Extend Address It works similar to BKRDEC, but you can specify an extended address.

The GUI is also equipped with NAND read and comparison functions as shown below.