28F640W30 NUMONYX [Numonyx B.V], 28F640W30 Datasheet - Page 51

• Manufacturer Part Number: 28F640W30
• Description: Numonyx Wireless Flash Memory (W30)
• Manufacturer: NUMONYX [Numonyx B.V]

Numonyx™ Wireless Flash Memory (W30)
Table 18: Command Codes and Descriptions (Sheet 1 of 2)
November 2007
Order Number: 290702-13
Block Locking
Operation
Program
Suspend
Erase
Read
Code
70h
90h
98h
50h
40h
10h
30h
D0h
20h
D0h
B0h
D0h
60h
01h
D0h
FFh
2Fh
Read Array
Read Status
Register
Read Identifier
Read Query
Clear Status
Register
Word Program
Setup
Alternate
Setup
EFP Setup
EFP Confirm
Erase Setup
Erase Confirm
Program
Suspend or
Erase Suspend
Suspend
Resume
Lock Setup
Lock Block
Unlock Block
Lock-Down
Flash Device
Command
Places the selected partition in read-array mode.
Places the selected partition in status register read mode. The partition enters
this mode after a Program or Erase command is issued to it.
Places the selected partition in read identifier mode. Flash device reads from
partition addresses output the manufacturer/device codes, configuration register
data, block lock status, or protection register data on D[15:0].
Places the addressed partition in read query mode. Flash device reads from the
partition addresses output the CFI information on D[7:0].
The WSM can set the block lock (SR[1]), V
erase (SR[5]) status bits of the status register, but WSM cannot clear these bits.
SR[5:3,1] can be cleared only by a flash device reset or through the Clear Status
Register command.
Status register updates occur when CE# or OE# is toggled. After programming,
use a Read Array command to read the array data.
Equivalent to a Program Setup command (40h).
This program command activates EFP mode.
All other commands are ignored after EFP mode begins.
If the first command was EFP Setup (30h), the CUI latches the address and data,
and prepares the flash device for EFP mode.
This command prepares the CUI for Block Erase. The flash device erases the
block that the Erase Confirm command addresses. If the next command is not
Erase Confirm, the CUI sets status register bits SR[5:4] to indicate a command
sequence error, and places the partition in the read status register mode.
If the first command was Erase Setup (20h), the CUI latches the address and
data, and erases the block indicated by the erase confirm cycle address. During
program or erase, the partition responds only to Read Status Register, Program
Suspend, and Erase Suspend commands. CE# or OE# toggle updates the status
register data.
This command, issued at any flash device address, suspends the currently
executing program or erase operation. Status register data indicates that the
operation was successfully suspended if SR[2] (program suspend) or SR[6]
(erase suspend) and SR[7] are set. The WSM remains in the suspended state
regardless of the control signal states (except RST#).
This command, issued at any flash device address, resumes the suspended
program or erase operation.
This command prepares the CUI lock configuration. If the next command is not
Lock Block, Unlock Block, or Lock-Down, the CUI sets SR[5:4] to indicate a
command sequence error.
If the previous command was Lock Setup (60h), the CUI locks the addressed
block.
If the previous command was Lock Setup (60h), the CUI latches the address and
unlocks the addressed block. If previously locked-down, the operation has no
effect.
If the previous command was Lock Setup (60h), the CUI latches the address and
locks-down the addressed block.
• The first cycle of this preferred program command prepares the CUI for a
• The second cycle latches the address and data, and executes the WSM
• The first write cycle sets up the command.
• If the second cycle is an EFP Confirm command (D0h), subsequent writes
program operation.
program algorithm at this location.
provide program data.
Description
PP
(SR[3]), program (SR[4]), and
Datasheet
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