S29GL01GS10DFIV13 datasheet(27/108 Pages) CYPRESS

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Document Number: 001-98285 Rev. *R

Page 27 of 108

S29GL01GS/S29GL512S

S29GL256S/S29GL128S

Legend:

SA = Sector Address (Non-Sector Address bits are don't care. Any address within the Sector is sufficient.)

WBL = Write Buffer Location (MUST be within the boundaries of the Write-Buffer-Line specified by the Starting Address.)

WC =Word Count

PD = Program Data

5.4.2

Program Suspend / Program Resume Commands

The Program Suspend command allows the system to interrupt an embedded programming operation so that data can read from

any non-suspended Line. When the Program Suspend command is written during a programming process, the device halts the

programming operation within tPSL (program suspend latency) and updates the status bits. Addresses are don't-cares when writing

the Program Suspend command.

There are two commands available for program suspend. The legacy combined Erase / Program suspend command (B0h command

code) and the separate Program Suspend command (51h command code). There are also two commands for Program resume. The

legacy combined Erase / Program resume command (30h command code) and the separate Program Resume command (50h

command code). It is recommended to use the separate program suspend and resume commands for programming and use the

legacy combined command only for erase suspend and resume.

After the programming operation has been suspended, the system can read array data from any non-suspended Line. The Program

Suspend command may also be issued during a programming operation while an erase is suspended. In this case, data may be

read from any addresses not in Erase Suspend or Program Suspend.

After the Program Resume command is written, the device reverts to programming and the status bits are updated. The system can

determine the status of the program operation by reading the Status Register or using Data Polling. Refer to Status Register

on page 34 for information on these status bits. Refer to Data Polling Status on page 35 for more information.

Accesses and commands that are valid during Program Suspend are:



Read to any other non-erase-suspended sector



Read to any other non-program-suspended Line



Status Read command



Exit ASO or Command Set Exit



Program Resume command

Table 5.1 Write Buffer Programming Command Sequence

Sequence

Address

Data

Comment

Issue Unlock Command 1

555/AAA

Issue Unlock Command 2

2AA/555

Issue Write to Buffer Command at Sector

Address

0025h

Issue Number of Locations at Sector Address

WC = number of words to program - 1

Example: WC of 0 = 1 words to pgm

WC of 1 = 2 words to pgm

Load Starting Address / Data pair

Starting

Address

Selects Write-Buffer-Page and loads first Address/Data

Pair.

Load next Address / Data pair

WBL

All addresses MUST be within the selected write-buffer-

page boundaries, and have to be loaded in sequential

order.

Load LAST Address/Data pair

WBL

All addresses MUST be within the selected write-buffer-

page boundaries, and have to be loaded in sequential

order.

Issue Write Buffer Program Confirm at Sector

Address

0029h

This command MUST follow the last write buffer location

loaded, or the operation will ABORT.

Device goes busy.

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