Datasheet

Section 19 ROM
Rev.6.00 Sep. 27, 2007 Page 902 of 1268
REJ09B0220-0600
CE
FWE
A
18
to A
0
I/O
5
to I/O
0
I/O
6
I/O
7
OE
WE
t
ests
t
erase
t
spa
t
dh
t
ds
t
f
t
r
t
wep
t
ens
t
enh
t
nxtc
t
nxtc
t
ceh
t
ces
Erase end identifi-
cation signal
Erase normal end
confirmation signal
H'20
H'20
H'00
Figure 19.83 Auto-Erase Mode Timing Waveforms
19.29.7 Status Read Mode
• Status read mode is used to identify what type of abnormal end has occurred. Use this mode
when an abnormal end occurs in auto-program mode or auto-erase mode.
• The return code is retained until a command write for other than status read mode is
performed.