MX25R1035F Datasheet, PDF (56/87 Pages) Macronix International – Wide Vcc Range, 1M-BIT

ADVANCED INFORMATION
MX25R1035F
9-30. Program/Erase Suspend/Resume
The Suspend instruction interrupts a Page Program, Sector Erase, or Block Erase operation to allow access to
the memory array. After the program or erase operation has entered the suspended state, the memory array can
be read except for the page being programmed or the sector or block being erased ("Table 9. Readable Area of
Memory While a Program or Erase Operation is Suspended").
Table 9. Readable Area of Memory While a Program or Erase Operation is Suspended
Suspended Operation
Readable Region of Memory Array
Page Program
All but the Page being programmed
Sector Erase (4KB)
All but the 4KB Sector being erased
Block Erase (32KB)
All but the 32KB Block being erased
Block Erase (64KB)
All but the 64KB Block being erased
When the serial flash receives the Suspend instruction, there is a latency of tPSL or tESL ("Figure 33. Suspend
to Read/Program Latency") before the Write Enable Latch (WEL) bit clears to “0” and the PSB or ESB sets to “1”,
after which the device is ready to accept one of the commands listed in "Table 10. Acceptable Commands During
Program/Erase Suspend after tPSL/tESL" (e.g. FAST READ). Refer to "Table 19. AC Characteristics" for tPSL and
tESL timings. "Table 11. Acceptable Commands During Suspend (tPSL/tESL not required)" lists the commands for
which the tPSL and tESL latencies do not apply. For example, RDSR, RDSCUR, RSTEN, and RST can be issued at
any time after the Suspend instruction.
Security Register bit 2 (PSB) and bit 3 (ESB) can be read to check the suspend status. The PSB (Program Suspend
Bit) sets to “1” when a program operation is suspended. The ESB (Erase Suspend Bit) sets to “1” when an erase
operation is suspended. The PSB or ESB clears to “0” when the program or erase operation is resumed.
Table 10. Acceptable Commands During Program/Erase Suspend after tPSL/tESL
Command Name
Command Code
Suspend Type
Program Suspend Erase Suspend
READ
03h
•
•
FAST READ
0Bh
•
•
DREAD
3Bh
•
•
QREAD
6Bh
•
•
2READ
BBh
•
•
4READ
EBh
•
•
RDSFDP
5Ah
•
•
RDID
9Fh
•
•
REMS
90h
•
•
SBL
C0
•
•
ENSO
B1h
•
•
EXSO
C1h
•
•
WREN
06h
•
RESUME
7Ah or 30h
•
•
PP
02h
•
4PP
38h
•
P/N: PM2218
REV. 0.00, JAN. 12, 2015
56