參數(shù)資料
型號(hào)： S29PL-J55BAW021
廠商： Spansion Inc.
元件分類： DRAM
英文描述： CMOS 3.0 Volt-only, Simultaneous-Read/Write Flash Memory with Enhanced VersatileIO Control
中文描述： CMOS 3V電壓供電，同步讀/寫(xiě)Flash存儲(chǔ)器并有增強(qiáng)VersatileIO控制
文件頁(yè)數(shù)： 57/96頁(yè)
文件大?。?/td> 827K
代理商： S29PL-J55BAW021
September 22, 2006 S29PL-J_00_A9
S29PL-J
55
D a t a
S h e e t
( A d v a n c e
I n f o r m a t i o n )
15. Command Definitions
Writing specific address and data commands or sequences into the command register initiates device
operations.
Table 15.1 on page 62
defines the valid register command sequences. Writing
incorrect
address and data values
or writing them in the
improper sequence
may place the device in an unknown
state. A reset command is then required to return the device to reading array data.
All addresses are latched on the falling edge of WE# or CE# (CE1# / CE2# in PL129J), whichever happens
later. All data is latched on the rising edge of WE# or CE# (CE1# / CE2# in PL129J), whichever happens first.
Refer to
AC Characteristic
on page 72
for timing diagrams.
15.1
Reading Array Data
The device is automatically set to reading array data after device power-up. No commands are required to
retrieve data. Each bank is ready to read array data after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command, the corresponding bank enters the erase-suspend-
read mode, after which the system can read data from any non-erase-suspended sector within the same
bank. The system can read array data using the standard read timing, except that if it reads at an address
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 60
for more information.
After the device accepts a Program Suspend command, the corresponding bank enters the program-
suspend-read mode, after which the system can read data from any non-program-suspended sector within
the same bank. See
Program Suspend/Program Resume Commands
on page 61
for more information.
The system
must
issue the reset command to return a bank to the read (or erase-suspend-read) mode if DQ5
goes high during an active program or erase operation, or if the bank is in the autoselect mode. See the next
section,
Reset Command
on page 56
, for more information.
See also
Requirements for Reading Array Data
on page 20
for more information. The table
AC Characteristic
on page 72
provides the read parameters, and
Figure 16.2 on page 66
shows the timing diagram.
4Fh
0001h
Top/Bottom Boot Sector Flag
00h = Uniform device, 01h = Both top and bottom boot with write protect,
02h = Bottom Boot Device, 03h = Top Boot Device,
04h = Both Top and Bottom
50h
0001h
Program Suspend
0 = Not supported, 1 = Supported
57h
0004h
Bank Organization
00 = Data at 4Ah is zero, X = Number of Banks
58h
0027h (PL127J)
0027h (PL129J)
0017h (PL064J)
000Fh (PL032J)
Bank 1 Region Information
X = Number of Sectors in Bank 1
59h
0060h (PL127J)
0060h (PL129J)
0030h (PL064J)
0018h (PL032J)
Bank 2 Region Information
X = Number of Sectors in Bank 2
5Ah
0060h (PL127J)
0060h (PL129J)
0030h (PL064J)
0018h (PL032J)
Bank 3 Region Information
X = Number of Sectors in Bank 3
5Bh
0027h (PL127J)
0027h (PL129J)
0017h (PL064J)
000Fh (PL032J)
Bank 4 Region Information
X = Number of Sectors in Bank 4
Table 14.4
Primary Vendor-Specific Extended Query (Continued)
Addresses
Data
Description
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