s29ns01gs Meet Spansion Inc., s29ns01gs Datasheet - Page 46

• Manufacturer Part Number: s29ns01gs
• Description: S29ns01gs 1024 Megabit 128 Megabyte 16-bit Data Width, Burst Access, Simultaneous Read/write, 1.8 Volt-only Flash Memory In 65 Nm Mirrorbit Technology
• Manufacturer: Meet Spansion Inc.

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Software (Command) Reset
Software reset is part of the command set (see
device to idle state and must be used for the following conditions:
Software Reset does not affect EA mode. Reset commands are ignored once programming or erasure has
begun, until the operation is complete. Software Reset does not affect outputs, or register values; it serves
primarily to return to Read mode from ASO mode.
Software Reset may cause a return to Read mode from undefined states that might result from invalid
command sequences. However, a Hardware Reset may be required to return to normal operation from some
undefined states.
There is no software reset latency requirement. The reset command is executed during the t
Reset commands are ignored once programming/erasure has begun until the operation is complete.
Software Functions and Sample Code
Note:
XXXX indicates a don't care 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.
/* Example: Software Reset Command */
/* Return to read array mode from ASO mode */ *( (UINT16 *) base_address ) = 0x00F0;
1. Exit ID/CFI mode
2. Exit Secure Silicon Region mode
3. Exit Configuration Register mode
4. Exit SSR Lock mode
Reset Command
Cycle
S29NS-S MirrorBit
Write Software Reset Command
D a t a
Description
(LLD Function = lld_ResetCmd)
S h e e t
®
Eclipse
Table 7.22 Reset
11.1, Command Definitions on page
™
Flash Family
( P r e l i m i n a r y )
Operation
Write
Byte Address
XXXX
S29NS-S_00_02 April 20, 2009
67) that also returns the
Word Address
XXXX
WPH
period.
00F0h
Data