LHF16KA7 View Datasheet(PDF) - Sharp Electronics
Part Name
Description
MFG CO.
'LHF16KA7' PDF : 53 Pages View PDF
SHARP
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LHFlGKA7
12
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1.5 Query Command
=luery database can be read by writing Query
:ommand (98H). Following the command write, read
ycle from address shown in Table 7-l 1 retrieve the
xitical information to write, erase and otherwise
:ontrol the flash component. A, of query offset
address is ignored when X8 mode (BYTE#=V,L).
;luery data are always presented on the low-byte
jata output (DC&-D&). In x16 mode, high-byte
;DQs-DQ,s) outputs OOH. The bytes not assigned to
any information or reserved for future use are set to
‘0â€. This command functions independently of the
Jpp voltage. RP# must be V,,.
Table 6. Example of Query Structure (
Mode
Off set Address
ou But
X8 mode
DQ%8
A,, A,, A,, A,, A,, A,
1 , 0 , 0 , 0 (0 , 0 (20H) High Z
1 , 0 , 0 , 0 , 0 , 1 (21H) High Z
DQm-,
"Q"
"Q"
1, O,O,O,l ,0(22H) HighZ “Râ€
1 , 0 , 0 , 0 , 1 , 1 (23H) High Z “Râ€
X16mode
A,, A,, A,, A,, A,
1 ,O,O,O,O (10H) OOH “Qâ€
l,O,O,O,l
(11H) OOH “Râ€
1.5.1 Block Status Register
This field provides lock configuration and erase status for the specified block. These informations are only available
Nhen device is ready (SR.7=1). If block erase or full chip erase operation is finished irregulary, block erase status
lit will be set to “1â€. If bit 1 is “lâ€, this block is invalid.
Table 7. Query Block Status Register
Offset
(Word Address)
Length
Description
(BA+2)H
OlH Block Status Register
bit0 Block Lock Configuration
O=Block is unlocked
1=Block is Locked
bit1 Block Erase Status
O=Last erase operation completed successfully
1=Last erase operation not completed successfully
v’
t&2-7 reserved for future use
Uote:
I. BA=The beginning of a Block Address.
Rev. 1.9
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