S29PL-N_07 SPANSION [SPANSION], S29PL-N_07 Datasheet - Page 43
![no-image](/images/no-image-200.jpg)
S29PL-N_07
Manufacturer Part Number
S29PL-N_07
Description
256/128/128 Mb (16/8/8 M x 16-Bit) CMOS, 3.0 Volt-only Simultaneous Read/Write, Page-Mode Flash Memory
Manufacturer
SPANSION [SPANSION]
Datasheet
1.S29PL-N_07.pdf
(74 pages)
- Current page: 43 of 74
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7.8
June 6, 2007 S29PL-N_00_A5
Software Reset
Software reset is part of the command set (see
read mode and must be used for the following conditions:
Software Functions and Sample Code
Note
Base = Base Address.
The following is a C source code example of using the reset function. Refer to the Spansion Low Level Driver
User’s Guide (available on www.spansion.com) for general information on Spansion Flash memory software
development guidelines.
The following are additional points to consider when using the reset command:
/* Example: Reset (software reset of Flash state machine) */
This command resets the banks to the read and address bits are ignored.
Reset commands are ignored once erasure has begun until the operation is complete.
Once programming begins, the device ignores reset commands until the operation is complete
The reset command may be written between the cycles in a program command sequence before
programming begins (prior to the third cycle). This resets the bank to which the system was writing to the
read mode.
If the program command sequence is written to a bank that is in the Erase Suspend mode, writing the reset
command returns that bank to the erase-suspend-read mode.
The reset command may be also written during an Autoselect command sequence.
If a bank has entered the Autoselect mode while in the Erase Suspend mode, writing the reset command
returns that bank to the erase-suspend-read mode.
If DQ1 goes high during a Write Buffer Programming operation, the system must write the Write to Buffer
Abort Reset command sequence to RESET the device to reading array data. The standard RESET
command does not work during this condition.
To exit the unlock bypass mode, the system must issue a two-cycle unlock bypass reset command
sequence (see command tables for detail).
1. To exit Autoselect mode
2. To reset software when DQ5 goes high during write status operation that indicates program or
3. To exit sector lock/unlock operation.
4. To return to erase-suspend-read mode if the device was previously in Erase Suspend mode.
5. To reset software after any aborted operations
*( (UINT16 *)base_addr + 0x000 ) = 0x00F0;
erase cycle was not successfully completed
Reset Command
D a t a
Cycle
S h e e t
S29PL-N MirrorBit
( P r e l i m i n a r y )
(LLD Function = lld_ResetCmd)
Operation
Table 7.19 Reset
™
Write
Table 12.1 on page
Flash Family
66) that also returns the device to array
Word Address
Base + xxxh
00F0h
Data
43
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