S29GL256P11TFIV20 Spansion Inc., S29GL256P11TFIV20 Datasheet - Page 41

• Manufacturer Part Number: S29GL256P11TFIV20
• Description: IC 32PAGE-MODE FLASH MEMORY
• Manufacturer: Spansion Inc.

Specifications of S29GL256P11TFIV20

• Cell Type: NOR
• Density: 256Mb
• Access Time (max): 110ns
• Interface Type: Parallel
• Boot Type: Not Required
• Address Bus: 25/24Bit
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 32M/16M
• Supply Current: 110mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / Rohs Status: Compliant

November 17, 2010 S29GL-P_00_A13
7.9.3
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:
 This command resets the sectors to the read and address bits are ignored.
 Reset commands are ignored during program and erase operations.
 The reset command may be written between the cycles in a program command sequence before
 If the program command sequence is written to a sector that is in the Erase Suspend mode, writing the
 The reset command may be written during an Autoselect command sequence.
 If a sector has entered the Autoselect mode while in the Erase Suspend mode, writing the reset command
 If DQ1 goes high during a Write Buffer Programming operation, the system must write the “Write to Buffer
 To exit the unlock bypass mode, the system must issue a two-cycle unlock bypass reset command
/* Example: Reset (software reset of Flash state machine) */
programming begins (prior to the third cycle). This resets the sector to which the system was writing to the
read mode.
reset command returns that sector to the erase-suspend-read mode.
returns that sector to the erase-suspend-read mode.
Abort Reset” command sequence to RESET the device to reading array data. The standard RESET
command does not work during this condition.
sequence [see
1. to exit Autoselect mode
2. when DQ5 goes high during write status operation that indicates program or erase cycle was not
3. exit sector lock/unlock operation.
4. to return to erase-suspend-read mode if the device was previously in Erase Suspend mode.
5. after any aborted operations
*( (UINT16 *)base_addr ) = 0x00F0;
successfully completed
Reset Command
Cycle
Command Definitions on page 68
D a t a
S29GL-P MirrorBit
S h e e t
Operation
(LLD Function = lld_ResetCmd)
Write
Table 7.18 Reset
®
Table 12.1 on page
Flash Family
for details].
Byte Address
Base + xxxh
69) that also returns the device to array
Word Address
Base + xxxh
00F0h
Data
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