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LHF16KTV
Table 4. Command Definitions (10)
10
Bus Cycles Notes
First Bus Cycle
Second Bus Cycle
Command
Req’d
Oper (1)
Addr (2)
Data (3)
Oper (1)
Addr (2)
Data (3)
Read Array/Reset
1
Write
X
FFH
Read Identifier Codes
Query
Read Status Register
≥ 2
≥ 2
2
4
Write
Write
Write
X
X
X
90H
98H
70H
Read
Read
Read
IA
QA
X
ID
QD
SRD
Clear Status Register
1
Write
X
50H
Block Erase Setup/Confirm
Full Chip Erase Setup/Confirm
Word/Byte Write Setup/Write
Alternate Word/Byte Write
Setup/Write
Multi Word/Byte Write
Setup/Confirm
2
2
2
2
≥ 4
5
5,6
5,6
9
Write
Write
Write
Write
Write
BA
X
WA
WA
WA
20H
30H
40H
10H
E8H
Write
Write
Write
Write
Write
BA
X
WA
WA
WA
D0H
D0H
WD
WD
N-1
Block Erase and (Multi)
Word/byte Write Suspend
Confirm and Block Erase and
(Multi) Word/byte Write Resume
1
1
5
5
Write
Write
X
X
B0H
D0H
Block Lock-Bit Set Setup/Confirm
Block Lock-Bit Reset
Setup/Confirm
2
2
7
8
Write
Write
BA
X
60H
60H
Write
Write
BA
X
01H
D0H
STS Configuration
Level-Mode for Erase and Write
2
Write
X
B8H
Write
X
00H
(RY/BY# Mode)
STS Configuration
Pulse-Mode for Erase
STS Configuration
Pulse-Mode for Write
STS Configuration
Pulse-Mode for Erase and Write
2
2
2
Write
Write
Write
X
X
X
B8H
B8H
B8H
Write
Write
Write
X
X
X
01H
02H
03H
NOTES:
1. BUS operations are defined in Table 3 and Table 3.1.
2. X=Any valid address within the device.
IA=Identifier Code Address: see Figure 4.
QA=Query Offset Address.
BA=Address within the block being erased or locked.
WA=Address of memory location to be written.
3. SRD=Data read from status register. See Table 14 for a description of the status register bits.
WD=Data to be written at location WA. Data is latched on the rising edge of WE# or CE# (whichever goes high
first).
ID=Data read from identifier codes.
QD=Data read from query database.
4. Following the Read Identifier Codes command, read operations access manufacturer, device and block status
codes. See Section 4.2 for read identifier code data.
5. If the block is locked, WP# must be at V IH to enable block erase or (multi) word/byte write operations. Attempts
to issue a block erase or (multi) word/byte write to a locked block while RP# is V IH .
6. Either 40H or 10H are recognized by the WSM as the byte write setup.
7. A block lock-bit can be set while WP# is V IH .
8. WP# must be at V IH to clear block lock-bits. The clear block lock-bits operation simultaneously clears all block
lock-bits.
9. Following the Third Bus Cycle, inputs the write address and write data of ’N’ times. Finally, input the confirm
command ’D0H’.
10. Commands other than those shown above are reserved by SHARP for future device implementations and
should not be used.
Rev. 2.0
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