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Intel
Wireless Flash Memory (W18)
07-Dec-2005
Intel Wireless Flash Memory (W18)
Datasheet
58
Order Number: 290701, Revision: 015
Table 20.
Bus Cycle Definitions
Operation
Command
Bus
Cycles
First Bus Cycle
Second Bus Cycle
Oper
Addr1
Data2,3
Oper
Addr1
Data2,3
Read
Read Array/Reset
≥1Write
PnA
FFh
Read
Address
Array
Data
Read Identifier
≥ 2
Write
PnA
90h
Read
PBA+IA
IC
CFI Query
≥ 2
Write
PnA
98h
Read
PBA+QA
QD
Read Status Register
2
Write
PnA
70h
Read
PnA
SRD
Clear Status Register
1
Write
XX
50h
Program
and
Erase
Block Erase
2
Write
BA
20h
Write
BA
D0h
Word Program
2
Write
WA
40h/10h
Write
WA
WD
EFP
>2
Write
WA
30h
Write
WA
D0h
Program/Erase Suspend
1
Write
XX
B0h
Program/Erase Resume
1
Write
XX
D0h
Lock
Lock Block
2
Write
BA
60h
Write
BA
01h
Unlock Block
2
Write
BA
60h
Write
BA
D0h
Lock-Down Block
2
Write
BA
60h
Write
BA
2Fh
Protection
Protection Program
2
Write
PA
C0h
Write
PA
PD
Lock Protection Program
2
Write
LPA
C0h
Write
LPA
FFFDh
Configuration
Set Configuration Register
2
Write
CD
60h
Write
CD
03h
Notes:
1.
First-cycle command addresses should be the same as the operation’s target address. Examples: the first-cycle address
for the Read Identifier command should be the same as the Identification code address (IA); the first-cycle address for
the Word Program command should be the same as the word address (WA) to be programmed; the first-cycle address
for the Erase/Program Suspend command should be the same as the address within the block to be suspended; etc.
XX = Any valid address within the device.
IA = Identification code address.
BA = Block Address. Any address within a specific block.
LPA = Lock Protection Address is obtained from the CFI (through the CFI Query command). The Intel Wireless Flash
Memory family’s LPA is at 0080h.
PA = User programmable 4-word protection address.
PnA = Any address within a specific partition.
PBA = Partition Base Address. The very first address of a particular partition.
QA = CFI code address.
WA = Word address of memory location to be written.
2.
SRD = Status register data.
WD = Data to be written at location WA.
IC = Identifier code data.
PD = User programmable 4-word protection data.
QD = Query code data on DQ[7:0].
CD = Configuration register code data presented on device addresses A[15:0]. A[MAX:16] address bits can select any
descriptions.
3.
Commands other than those shown above are reserved by Intel for future device implementations and should not be
used.