AM29LV160M datasheet(39/63 Pages) AMD

Part #	AM29LV160M

Description	16 Megabit (2 M x 8-Bit/1 M x 16-Bit) MirrorBit TM 3.0 Volt-only Boot Sector Flash Memory

PDF	63 Pages

Scroll/Zoom	100%

Manufacturer	AMD [Advanced Micro Devices]

Direct Link	http://www.amd.com

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39 / 63 page

January 31, 2007 25974B5

Am29LV160M

Data

Sheet

Figure 8. Toggle Bit Algorithm

Notes:

1. Read toggle bit twice to determine whether or not it is toggling. See text.

2. Recheck toggle bit because it may stop toggling as DQ5 changes to “1”. See text.

DQ5: Exceeded Timing Limits

DQ5 indicates whether the program or erase time exceeded a specified internal

pulse count limit. Under these conditions DQ5 produces a “1.” This is a failure

condition that indicates the program or erase cycle was not successfully

completed.

The DQ5 failure condition may appear if the system tries to program a “1” to a

location that is previously programmed to “0.” Only an erase operation can

START

Yes

DQ5 = 1?

Yes

Toggle Bit

= Toggle?

Program/Erase

Operation Not

Complete, Write

Reset Command

Program/Erase

Operation Complete

Read DQ7–DQ0

Toggle Bit

= Toggle?

Read DQ7–DQ0

Twice

Read DQ7–DQ0

(Note 1)

(Notes

1, 2)

AM29LV160M Datasheet(PDF) 39 Page - Advanced Micro Devices