HD64F7050 RENESAS [Renesas Technology Corp], HD64F7050 Datasheet - Page 651

• Manufacturer Part Number: HD64F7050
• Description: 32-Bit RISC Microcomputer SuperH RISC engine Family/
• Manufacturer: RENESAS [Renesas Technology Corp]

19.11.5 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 D6. Alternatively, status read mode can also
4. Status polling D6 and D7 pin information is retained until the next command write. As long as
I/O5–I/O0
A16–A0
be used for this purpose (D7 status polling uses the auto-erase operation end identification
pin).
the next command write has not been performed, reading is possible by enabling CE and OE.
FWE
I/O7
I/O6
WE
OE
CE
t
pns
t
ces
Figure 19.18 Auto-Program Mode Timing Waveforms
t
f
t
ds
t
wep
H'40
t
t
ceh
r
t
dh
t
nxtc
t
as
Address
stable
t
ah
Data transfer
1 to 128byte
Rev. 5.00 Jan 06, 2006 page 631 of 818
t
wsts
Section 19 ROM (256 kB Version)
t
write
t
spa
H'00
Write operation complete verify signal
Write normal complete verify signal
t
pnh
t
nxtc
REJ09B0273-0500