28F160S3-110 데이터 시트보기 (PDF) - Intel

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28F160S3-110

WORD-WIDE FlashFile™ MEMORY FAMILY

Intel 

E

3.6 Read Identifier Codes

Operation

The read-identifier codes operation outputs the

manufacturer code, device code, and block lock

configuration codes for each block configuration

(see Figure 6). Using the manufacturer and

device codes, the system software can

automatically match the device with its proper

algorithms. The block-lock configuration codes

identify each block’s lock-bit setting.

Figure 6. Device Identifier Code Memory Map

28F160S3, 28F320S3

3.7 Write

Writing commands to the CUI enables reading of

device data, query, identifier codes, inspection

and clearing of the Status Register. Additionally,

when VPP = VPPH1/2, block erasure, programming,

and lock-bit configuration can also be performed.

The Block Erase command requires appropriate

command data and an address within the block

to be erased. The Byte/Word Write command

requires the command and address of the

location to be written. Set Block Lock-Bit

commands require the command and address

within the block to be locked. The Clear Block

Lock-Bits command requires the command and

an address within the device.

The CUI does not occupy an addressable

memory location. It is written when WE#, CE0#,

and CE1# are active and OE# = VIH. The address

and data needed to execute a command are

latched on the rising edge of WE# or CEX#

(CE0#, CE1#), whichever goes high first.

Standard microprocessor write timings are used.

Figure 18 illustrates a write operation.

4.0 COMMAND DEFINITIONS

VPP voltage ≤ VPPLK enables read operations

from the Status Register, identifier codes, or

memory blocks. Placing VPPH1/2 on VPP enables

successful block erase, programming, and lock-

bit configuration operations.

Device operations are selected by writing specific

commands into the CUI. and Table 3 define

these commands.

ADVANCE INFORMATION

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