S29GL032A datasheet(62/95 Pages) SPANSION

62 / 95 page

S29GL-A

S29GL-A_00_A11 September 10, 2007

Da ta

Sh e e t

Table 10.1 Command Definitions (x8 Mode, BYTE# = VIL)

Command Sequence

(Note 1)

Bus Cycles (Notes 2–5)

First

Second

Third

Fourth

Fifth

Sixth

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read (Note 6)

1RA

Reset (Note 7)

1XXX

Manufacturer ID

AAA

555

AAA

X00

Device ID (Note 9)

AAA

555

AAA

X02

X1C

(Note 9)

X1E

(Note 9)

Device ID (Note 1)

AAA

555

AAA

X02

(Note 2)

Secured Silicon Sector Factory Protect

AAA

555

AAA

X06

(Note 1)

Sector Group Protect Verify

(Note 3)

AAA

555

AAA

(SA)X04

00/01

Enter Secured Silicon Sector Region

AAA

555

AAA

Exit Secured Silicon Sector Region

AAA

555

AAA

XXX

Write to Buffer (Note 4)

AAA

555

WBL

Program Buffer to Flash

Write to Buffer Abort Reset (Note 5)

AAA

555

AAA

Chip Erase

AAA

555

AAA

555

AAA

Sector Erase

AAA

555

AAA

555

Program/Erase Suspend (Note 6)

XXX

Program/Erase Resume (Note 7)

1XXX

CFI Query (Note 8)

1AA

Legend

X = Don’t care

RA = Read Address of memory location to be read.

RD = Read Data read from location RA during read operation.

PA = Program Address. Addresses latch on falling edge of WE# or CE# pulse,

whichever happens later.

PD = Program Data for location PA. Data latches on rising edge of WE# or CE#

pulse, whichever happens first.

SA = Sector Address of sector to be verified (in autoselect mode) or erased.

Address bits A21–A15 uniquely select any sector.

WBL = Write Buffer Location. Address must be within same write buffer page as

PA.

BC = Byte Count. Number of write buffer locations to load minus 1.

Notes

1. See Table 7.1 on page 22 for description of bus operations.

2. All values are in hexadecimal.

3. Shaded cells indicate read cycles. All others are write cycles.

4. During unlock and command cycles, when lower address bits are 555 or

AAA as shown in table, address bits above A11 are don’t care.

5. Unless otherwise noted, address bits A21–A11 are don’t cares.

6. No unlock or command cycles required when device is in read mode.

7. Reset command is required to return to read mode (or to erase-suspend-

read mode if previously in Erase Suspend) when device is in autoselect

mode, or if DQ5 goes high while device is providing status information.

8. Fourth cycle of autoselect command sequence is a read cycle. Data bits

DQ15–DQ8 are don’t care. See Autoselect Command Sequence on page 53

or more information.

9. For S29GL064A and S29GL032A Device ID must be read in three cycles.

1. For S29GL016A, Device ID must be read in one cycle.

2. Refer to Table 7.12 on page 40, for data indicating Secured Silicon Sector

factory protect status.

3. Data is 00h for an unprotected sector group and 01h for a protected sector

group.

4. Total number of cycles in command sequence is determined by number of

bytes written to write buffer. Maximum number of cycles in command

sequence is 37, including Program Buffer to Flash command.

5. Command sequence resets device for next command after aborted write-to-

buffer operation.

6. System may read and program in non-erasing sectors, or enter autoselect

mode, when in Erase Suspend mode. Erase Suspend command is valid only

during a sector erase operation.

7. Erase Resume command is valid only during Erase Suspend mode.

8. Command is valid when device is ready to read array data or when device is

in autoselect mode.

9. Refer to Table 7.12 on page 40, for individual Device IDs per device density

and model number.

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