LH28F320S5HNS-L100 View Datasheet(PDF) - Sharp Electronics
Part Name
Description
MFG CO.
'LH28F320S5HNS-L100' PDF : 61 Pages View PDF
sharp
LHF32K10
20
4.14 STS Configuration Command
The Status (STS) pin can be configured to different
states using the STS Configuration command. Once
the STS pin has been configured, it remains in that
configuration until another configuration command is
issued, the device is powered down or RP# is set to
VIL. Upon initial device power-up and after exit from
deep power-down mode, the STS pin defaults to
RY/BY# operation where STS low indicates that the
WSM is busy. STS High Z indicates that the WSM is
ready for a new operation.
To reconfigure the STS pin to other modes, the STS
Configuration is issued followed by the appropriate
configuration code. The three alternate configurations
are all pulse mode for use as a system interrupt. The
STS Configuration command functions independently
of the VPP voltage and RP# must be VIH.
Table 12. STS Configuration Coding Description
Configuration
Bits
Effects
Set STS pin to default level mode
00H
(RY/BY#). RY/BY# in the default
level-mode of operation will indicate
WSM status condition.
Set STS pin to pulsed output signal
for specific erase operation. In this
01H
mode, STS provides low pulse at
the completion of BLock Erase,
Full Chip Erase and Clear Block
Lock-bits operations.
Set STS pin to pulsed output signal
for a specific write operation. In this
02H
mode, STS provides low pulse at
the completion of (Multi) Byte Write
and Set Block Lock-bit operation.
Set STS pin to pulsed output signal
for specific write and erase
operation. STS provides low pulse
03H
at the completion of Block Erase,
Full Chip Erase, (Multi) Word/Byte
Write and Block Lock-bit
Configuration operations.
Operation
Block Erase,
(Multi) Word/Byte
Write
Full Chip Erase
Set Block Lock-Bit
Clear Block Lock-Bits
Block
Lock-Bit
0
1
0,1
X
X
X
Table 13. Write Protection Alternatives
WP#
Effect
VIL or VIH
VIL
VIH
VIL
VIH
VIL
VIH
VIL
VIH
Block Erase and (Multi) Word/Byte Write Enabled
Block is Locked. Block Erase and (Multi) Word/Byte Write
Disabled
Block Lock-Bit Override. Block Erase and (Multi) Word/Byte
Write Enabled
All unlocked blocks are erased, locked blocks are not erased
All blocks are erased
Set Block Lock-Bit Disabled
Set Block Lock-Bit Enabled
Clear Block Lock-Bits Disabled
Clear Block Lock-Bits Enabled
Rev. 1.55
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