S29PL-J55BAI011 datasheet(57/96 Pages) SPANSION

57 / 96 page

September 22, 2006 S29PL-J_00_A9

S29PL-J

Da ta

Sh e e t

(Adv a n ce

In f o r m ation)

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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