M29W128 View Datasheet(PDF) - Numonyx -> Micron

Part Name

Description

Manufacturer

M29W128

128 Mbit 3V Supply Flash Memory

Numonyx -> Micron 

M29W128FH, M29W128FL

Figure 20. In-System equipment Group Protect flowchart

Flowcharts

START

n=0

RP = VID

WRITE 60h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

WRITE 60h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

Wait 100µs

WRITE 40h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

Wait 4µs

READ DATA

ADDRESS = GROUP ADDRESS

A1 = VIH, A0, A2 to A7 = VIL

NO

DATA = 01h

YES

RP = VIH

ISSUE READ/RESET

COMMAND

++n

NO

= 25

YES

RP = VIH

PASS

ISSUE READ/RESET

COMMAND

FAIL

AI07758b

1. Block Protection Groups are shown in Appendix D: High Voltage Block Protection, Table 28.

2. RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Memory Block.

73/78

Share Link: