M58WR032KU70ZA6U NUMONYX, M58WR032KU70ZA6U Datasheet - Page 54

• Manufacturer Part Number: M58WR032KU70ZA6U
• Description: NUMM58WR032KU70ZA6U NUM 32MB NOR FLASH P
• Manufacturer: NUMONYX

Dual operations and multiple bank architecture
10
54/123
Dual operations and multiple bank architecture
The Multiple Bank Architecture of the M58WRxxxKU/L provides flexibility for software
developers by allowing code and data to be split with 4 Mbit granularity. The Dual
Operations feature simplifies the software management of the device and allows code to be
executed from one bank while another bank is being programmed or erased.
The Dual operations feature means that while programming or erasing in one bank, Read
operations are possible in another bank with zero latency (only one bank at a time is allowed
to be in Program or Erase mode). If a Read operation is required in a bank which is
programming or erasing, the Program or Erase operation can be suspended. Also if the
suspended operation was Erase then a Program command can be issued to another block,
so the device can have one block in Erase Suspend mode, one programming and other
banks in Read mode. Bus Read operations are allowed in another bank between setup and
confirm cycles of program or erase operations. The combination of these features means
that read operations are possible at any moment.
Dual operations between the Parameter Bank and either of the CFI, the OTP or the
Electronic Signature memory space are not allowed.
are allowed or not between the CFI, the OTP, the Electronic Signature locations and the
memory array.
Tables
Note that only the commonly used commands are represented in these tables. For a
complete list of possible commands refer to
Table 14.
Idle
Programming
Erasing
Program
Suspended
Erase
Suspended
Status of
bank
14
and
Dual operations allowed in other banks
15
Array
Read
Yes
Yes
Yes
Yes
Yes
show the dual operations possible in other banks and in the same bank.
Register
Status
Read
Yes
Yes
Yes
Yes
Yes
Query
Read
Commands allowed in another bank
CFI
Yes
Yes
Yes
Yes
Yes
Electronic
Signature
Appendix D: Command interface state
Read
Yes
Yes
Yes
Yes
Yes
Table 16
Program Erase
Yes
Yes
–
–
–
M58WRxxxKU, M58WRxxxKL
shows which dual operations
Yes
–
–
–
–
Program/
Suspend
Erase
Yes
Yes
Yes
–
–
Program/
Resume
tables.
Erase
Yes
Yes
Yes
–
–