®
Numonyx™ StrataFlash Embedded Memory (J3-65nm)
7.3
Read Status Register
Issuing the Read Status Register command places the device in Read Status Register
mode. Subsequent reads output Status Register information on DQ[7:0], and 00h on
DQ[15:8]. The device remains in Read Status Register mode until a different read-
mode command is issued. Performing a program, erase, or block-lock operation also
changes the device’s read mode to Read Status Register mode.
The Status Register is updated on the falling edge of CE, or OE# when CE is active.
Status Register contents are valid only when SR.7 = 1. When WSM is busy, SR.7
indicates the WSM’s state and SR[6:0] are in high-Z state.
The Read Status Register command functions independent of the voltage level on
VPEN.
7.4
Read Device Information
Issuing the Read Device Information command places the device in Read Device
Information mode. Subsequent reads output device information on DQ[15:0].
The device remains in Read Device Information mode until a different read command is
issued. Also, performing a program, erase, or block-lock operation changes the device
to Read Status Register mode.
The Read Device Information command functions independent of the voltage level on
VPEN.
Table 9:
Device Identifier Information
(1,2,3)
Item
Address
0x00
Data
Manufacturer Code
Device ID Code
0x89h
ID (see Table 1)
Lock Bit:
0x01
Block Lock Configuration:
• Block Is Unlocked
BBA + 0x02
DQ0 = 0b0
• Block Is Locked
DQ0 = 0b1
(4)
J3A Block Lock Compatibility
0x03
0x000
(5)
General Purpose Register
DBA + 0x07
0x80
general data
PR-LK0
Lock Register 0
64-bit Factory-Programmed OTP register
64-bit User-Programmable OTP Register
Notes:
0x81–0x84
0x85–0x88
Factory OTP register data
User OTP register data
1.
2.
3.
BBA = Block Base Address.
DBA = Device base Address, Numonyx reserves other configuration address locations
is not used in either x8 or x16 modes during manufacturer and device ID reads. The lowest order
A
0
address line is A .
1
4.
5.
When reading Block Base Address + 00003h, the user needs to read 0000h to be backward
compatibly to J3A.
The GPR is used as read out register for Extended Functional Interface (EFI) command.
7.5
CFI Query
The CFI query table contains an assortment of flash product information such as block
size, density, allowable command sets, electrical specifications, and other product
information. The data contained in this table conforms to the CFI protocol.
Datasheet
22
December 2008
319942-02
NUMONYX [ NUMONYX B.V ]
