M58MR032C datasheet(17/52 Pages) STMICROELECTRONICS

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M58MR032C, M58MR032D

operations output the status register after the

erase is resumed. Block erase cannot resume until

program operations initiated during block erase

suspend have completed. It is also possible to

nest suspends as follows: suspend erase in the

first partition, start programming in the second or

in the same partition, suspend programming and

then read from the second or the same partition.

The suggested flowchart for erase suspend/re-

sume features of the memory is shown from Fig-

ure 20.

Program Suspend/Resume (PES/PER)

Program suspend is accepted only during the Pro-

gram instruction execution. When a Program Sus-

pend command is written to the C.I., the P/E.C.

freezes the Program operation.

Program Resume (PER) continues the Program

operation. Program Suspend (PES) consists of

writing the command B0h and the address should

be within the bank with the word in programming

(see Table 11).

The Status Register bit b2 is set to '1' (within 5µs)

when the program has been suspended. Bit b2 is

set to '0' in case the program is completed or in

progress (see Table 12).

The valid commands while program is suspended

are: Program/Erase Resume, Read Array, Read

Status Register, Read Electronic Signature, CFI

Query. During program suspend mode, the device

goes in standby mode by taking E to VIH. This re-

duces active current consumption. Program is

aborted if RP turns to VIL.

If a Program Suspend instruction was previously

executed, the Program operation may be resumed

by issuing the command D0h using an address

within the suspended bank (see Table 11). The

status register bit b2 and bit b7 are cleared when

program resumes and read operations output the

status register after the erase is resumed (see Ta-

ble 12). The suggested flowchart for program sus-

pend/resume features of the memory is shown

from Figure 18.

Block Protect (BP)

The BP instruction use two write cycles. The first

command written is the protection set-up 60h. The

second command is block Protect command 01h,

written to an address within the block to be protect-

ed (see Table 11). If the second command is not

recognized by the C.I the bit 4 and bit 5 of the sta-

tus register will be set to indicate a wrong se-

quence of commands (see Table 12). To read the

status register write the RSR command.

Block Unprotect (BU)

The instruction use two write cycles. The first com-

mand written is the protection set-up 60h. The sec-

ond command is block Unprotect command D0h,

written to an address within the block to be protect-

ed (see Table 11). If the second command is not

recognized by the C.I the bit 4 and bit 5 of the sta-

tus register will be set to indicate a wrong se-

quence of commands (see Table 12). To read the

status register write the RSR command.

Block Lock (BL)

The instruction use two write cycles. The first com-

mand written is the protection set-up 60h. The sec-

ond command is block Lock command 2Fh,

written to an address within the block to be protect-

ed (see Table 11). If the second command is not

recognized by the C.I the bit 4 and bit 5 of the sta-

tus register will be set to indicate a wrong se-

quence of commands. To read the status register

write the RSR command (see Table 12).

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