256Mb and 512Mb (256Mb/256Mb), P30-65nm
Read Operation
Read Device Identifier
The Read Device Identifier command instructs the device to output manufacturer code,
device identifier code, block-lock status, protection register data, or configuration regis-
ter data.
Table 12: Device Identifier Information
Item
Address
Data
Manufacturer code
0x00
0x01
0x89h
Device ID code
ID (see the Device ID Codes table )
Lock bit:
Block lock configuration:
• Block is unlocked
Block base address + 0x02
DQ0 = 0b0
• Block is locked
DQ0 = 0b1
• Block is not locked down
• Block is locked down
Read configuration register
General purpose register
Lock register 0
DQ1 = 0b0
DQ1 = 0b1
0x05
Device base address + 0x07
0x80
RCR contents
General purpose register data
PR-LK0 data
64-bit factory-programmed OTP register
64-bit user-programmable OTP register
Lock register 1
0x81–0x84
Factory OTP register data
User OTP register data
PR-LK1 OTP register lock data
OTP register data
0x85–0x88
0x89
128-bit user-programmable protection regis-
ters
0x8A–0x109
Table 13: Device ID codes
Device Identifier Codes
ID Code Type
Device Density
–T (Top Parameter)
–B (Bottom Parameter)
Device Code
256Mb
8919
891C
1. The 512Mb devices do not have a unique device ID associated with them. Each die with-
in the stack can be identified by either of the 256Mb Device ID codes depending on its
parameter option.
Note:
Read CFI
The Read CFI command instructs the device to output Common Flash Interface (CFI)
data when read. See READ CFI Structure Output for details on issuing the Read CFI
command. The CFI Database: Addresses and Sections table shows CFI information and
address offsets within the CFI database.
PDF: 09005aef84566799
p30_65nm_MLC_256Mb-512mb.pdf - Rev. A 1/13 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
31
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