A d v a n c e I n f o r m a t i o n
Table 15. Primary Vendor-Specific Extended Query (Sheet 2 of 2)
Addresses
(Models03,04
Byte Mode
Only)
Addresses
Data
Description
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
48h
90h
92h
0001h
Sector Protect/Unprotect scheme
01 = 29F040 mode, 02 = 29F016 mode,
03 = 29F400 mode, 04 = 29LV800A mode
49h
0004h
Simultaneous Operation
00 = Not Supported, 01 = Supported
4Ah
4Bh
4Ch
94h
96h
98h
0000h
0000h
0000h
Burst Mode Type
00 = Not Supported, 01 = Supported
Page Mode Type
00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page
ACC (Acceleration) Supply Minimum
4Dh
4Eh
4Fh
9Ah
9Ch
9Eh
00B5h
00C5h
000xh
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
ACC (Acceleration) Supply Maximum
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
Top/Bottom Boot Sector Flag
(0 = Model 00, 2 = Model 03, 3 = Model 04)
Command Definitions
Writing specific address and data commands or sequences into the command register initiates
device operations. Table 17 on page 38 defines the valid register command sequences. Writing
incorrect address and data values or writing them in the improper sequence resets the de-
vice to reading array data.
All addresses are latched on the falling edge of WE# or CE#, whichever happens later. All data is
latched on the rising edge of WE# or CE#, whichever happens first. Refer to the appropriate tim-
ing diagrams in the “AC Characteristics” section.
Reading Array Data
The device is automatically set to reading array data after device power-up. No commands are
required to retrieve data. The device is also ready to read array data after completing an Embed-
ded Program or Embedded Erase algorithm.
After the device accepts an Erase Suspend command, the device enters the Erase Suspend mode.
The system can read array data using the standard read timings, except that if it reads at an ad-
dress within erase-suspended sectors, the device outputs status data. After completing a
programming operation in the Erase Suspend mode, the system may once again read array data
with the same exception. See Erase Suspend/Erase Resume Commands on page 35 for more in-
formation on this mode.
The system must issue the reset command to re-enable the device for reading array data if DQ5
goes high, or while in the autoselect mode. See the Reset Command on page 32 section, next.
See also Requirements for Reading Array Data on page 11 for more information. The Read
Operations on page 50 provides the read parameters, and Figure 14, on page 50 shows the timing
diagram.
June 13, 2005 S29AL032D_00_A3
S29AL032D
31
SPANSION [ SPANSION ]
