Datasheet

Section 6 ROM
Rev. 6.00 Aug 04, 2006 page 196 of 680
REJ09B0145-0600
CE
A15−A0
OE
WE
I/O7
I/O6
I/O5−I/O0
t
wep
t
ds
t
dh
t
f
t
r
t
ests
t
erase
t
spa
t
ces
t
ceh
t
nxtc
t
nxtc
H'20 H'20 H'00
Erase end
decision signal
Erase normal
end
decision signal
Figure 6.18 Auto-Erase Mode Timing Waveforms
6.10.6 Status Read Mode
1. Status read mode is provided to identify the kind of abnormal end. Use this mode when an
abnormal end occurs in auto-program mode or auto-erase mode.
2. The return code is retained until a command write other than a status read mode command
write is executed.
3. Table 6.20 shows the AC characteristics and 6.20 shows the return codes.