Numonyx® Embedded Flash Memory (J3 65 nm) Single Bit per Cell (SBC)
11.0
Device Command Codes
For a complete definition on device operations refer to Section 8.4, “Device Commands”
on page 33. The list of all applicable commands are included here one more time for
the convenience.
Note:
Some customer applications use illegal or invalid commands (like 0x00) accidentally or
intentionally with the device. An illegal or invalid command caused the device output to
change to Array Read mode on 130nm. On the 65nm device, the output will change to
Read Status Register mode.
After an illegal or invalid command, software may attempt to read the device. If the
illegal command was intentional, software will expect to read array data on 130nm
device, such as 0xFFFF in an unprogrammed location. On the 65nm device, software
may not get the expected array data and instead the status register is read.
Please refer to the legal and valid commands/spec defined in the Datasheet, such as
forread mode, issue 0xFF to Read Array mode, 0x90 to Read Signature, 0x98 to Read
CFI/OTP array mode.
Table 34: Command Bus Cycles and Command Codes
Setup Write Cycle
Confirm Write Cycle
Command
Address Bus
Data Bus
Address Bus
Data Bus
Program Enhanced Configuration Register
Program OTP Register
Register Data
Device Address
Device Address
Device Address
Device Address
Device Address
Device Address
Device Address
0060h
00C0h
0050h
00B8h
00FFh
0070h
0090h
0098h
Register Data
0004h
Register Offset
Register Data
Clear Status Register
—
—
Program STS Configuration Register
Read Array
Device Address
Register Data
—
—
—
—
—
—
—
—
Read Status Register
Read Identifier Codes (Read Device Information)
CFI Query
0040h/
0010h
Word/Byte Program
Device Address
Device Address
Array Data
Buffered Program
Block Erase
Block Address
Block Address
Device Address
00E8h
0020h
00B0h
Block Address
Block Address
—
00D0h
00D0h
—
Program/Erase Suspend
Program/Erase Resume
Set Block Lock Bit
Device Address
Block Address
00D0h
0060h
—
—
Block Address
0001h
Clear Block Lock Bits
Device Address
0060h
Device Address
Block Address
00D0h
00D0h
Blank Check
Block Address
00BCh
Jan 2011
208032-03
Datasheet
47
NUMONYX [ NUMONYX B.V ]
