SH7050 Datasheet, PDF (651/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 19 ROM (256 kB Version)
FWE
A16–A0
CE
OE
WE
I/O7
I/O6
I/O5–I/O0
tpns tces
tceh tnxtc
Address
stable
tpnh
tnxtc
twep
tf
tr
tas
tds
tdh
tah
Data transfer
1 to 128byte
twsts tspa
twrite
Write operation complete verify signal
Write normal complete verify signal
H'40
H'00
Figure 19.18 Auto-Program Mode Timing Waveforms
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
be used for this purpose (D7 status polling uses the auto-erase operation end identification
pin).
4. Status polling D6 and D7 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 CE and OE.
Rev. 5.00 Jan 06, 2006 page 631 of 818
REJ09B0273-0500