28F640W30 NUMONYX [Numonyx B.V], 28F640W30 Datasheet - Page 55

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

Numonyx™ Wireless Flash Memory (W30)
10.0
10.1
Note:
10.2
Table 20: Flash Device Identification Codes (Sheet 1 of 2)
November 2007
Order Number: 290702-13
Manufacturer ID
Device ID
Block Lock Status
Item
Read Operations
Read Array
The Read Array command places (or resets) the partition in read-array mode and is
used to read data from the flash memory array. Upon initial flash device power-up, or
after reset (RST# transitions from V
read-array mode.
To read array data from the flash device:
If a partition is already in read-array mode, you do not need to issue the Read Array
command to read from that partition.
If the Read Array command is written to a partition that is erasing or programming, the
flash device presents invalid data on the bus until the program or erase operation
completes.
After the program or erase finishes in that partition, valid array data can then be read.
If an Erase Suspend or Program Suspend command suspends the WSM, a subsequent
Read Array command places the addressed partition in read-array mode.
The Read Array command functions independently of V
Read Device ID
The read identifier mode outputs the manufacturer/device identifier, block lock status,
protection register codes, and configuration register data. The identifier information is
contained within a separate memory space on the flash device, and can be accessed
along the 4-Mbit partition address range supplied by the Read Identifier command
(90h) address. Reads from addresses in
Read Identifier command to a partition that is programming or erasing places the
outputs of that partition in read ID mode while the partition continues to program or
erase in the background.
(
2
1. Write the Read Array command (FFh) to the CUI and specify the desired word
1. Read from that address.
)
address.
Partition
Partition
Base
Block
Address
1
Offset
00h
01h
02h
IL
to V
Table 20
IH
), all partitions default to asynchronous
D0 = 0
D0 = 1
0089h
8852h
8853h
8854h
8855h
8856h
8857h
Data
retrieve ID information. Issuing a
PP
.
32-Mbit TPD
32-Mbit BPD
64-Mbit TPD
64-Mbit BPD
128-Mbit TPD
128-Mbit BPD
Block is unlocked
Block is locked
Numonyx
Description
Datasheet
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