S29PL-J55BAI011 datasheet(63/96 Pages) SPANSION

63 / 96 page

September 22, 2006 S29PL-J_00_A9

S29PL-J

Da ta

Sh e e t

(Adv a n ce

In f o r m ation)

15.9

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 sector. 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. After

the programming operation has been suspended, the system can read array data from any non-suspended

sector. 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.

If a read is needed from the Secured Silicon Sector area, then user must use the proper command

sequences to enter and exit this region. The system may also write the autoselect command sequence when

the device is in Program Suspend mode. The device allows reading autoselect codes in the suspended

sectors, since the codes are not stored in the memory array. When the device exits the autoselect mode, the

device reverts to Program Suspend mode, and is ready for another valid operation. See “Autoselect

Command Sequence” for more information. After the Program Resume command is written, the device

reverts to programming. The system can determine the status of the program operation using the DQ7 or

DQ6 status bits, just as in the standard program operation. See “Write Operation Status” for more

information. The system must write the Program Resume command (address bits are “don’t care”) to exit the

Program Suspend mode and continue the programming operation. Further writes of the Program Resume

command are ignored. Another Program Suspend command can be written after the device has resumed

programming.

15.10 Command Definitions Tables

Table 15.1 on page 62 contains the Memory Array Command Definitions.

S29PL-J55BAI011 Datasheet(PDF) 63 Page - SPANSION