BUS OPERATION--1

Legend:

L=Logic LOW=VIL, H=Logic High=VIH, VID=12.0 0.5V, VHH=11.5-12.5V, X=Don't Care,

AIN=Address IN, DIN=Data IN,DOUT=Data OUT

Notes:

1.When the WP/ACC pin is at VHH, the device enters the accelerated program mode. See "Accelerated Program Operations" for more information.

2.The sector group protect and chip unprotect functions may also be implemented via programming equipment. See the "Sector Group Protection and Chip Unprotection" section.

3.If WP/ACC=VIL, the two outermost boot sectors remain protected. If WP/ACC=VIH, the two outermost boot sector protection depends on whether they were last protected or unprotected using the method described in "Sector/Sector Block Protection and Unprotection". If WP/ACC=VHH, all sectors will be unprotected.

4.DIN or Dout as required by command sequence, data polling, or sector protection algorithm.

5.Address are A20:A0 in word mode (BYTE=VIH), A20:A-1 in byte mode (BYTE=VIL).

CONFIDENTIAL – DO NOT COPY

Page 7-38

 

File No. SG-0198

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Image 57
Vizio L42HDTV10A, GV42L HDTV service manual BUS OPERATION--1