Hitachi H*/3694F-ZTAT User Manual
Rev. 1.0, 07/01, page 102 of 372
A15–A0
I/O7
I/O6
I/O5–I/O0
t
wep
t
ds
t
dh
t
f
t
r
t
as
t
ah
t
wsts
t
write
t
spa
t
ces
t
ceh
t
nxtc
t
nxtc
Address
stable
H'40
H'00
Data transfer
1 to 128 bytes
Write operation end decision signal
Write normal end decision signal
Figure 7-10 Auto-Program Mode Timing Waveforms
7.6.5
Auto-Erase Mode
1. Auto-erase mode supports only entire memory erasing.
2. Do not perform a command write during auto-erasing.
3. Confirm normal end of auto-erasing by checking I/O6. Alternatively, status read mode can also
be used for this purpose (I/O7 status polling is used as the auto-erase operation end decision
pin).
pin).
4.
Status polling I/O6 and I/O7 pin information is retained until the next command write. As
long as the next command write has not been performed, reading is possible by enabling
long as the next command write has not been performed, reading is possible by enabling
CE
and
OE.
5.
Table 7-12 shows the AC characteristics.