SH7065 Datasheet, PDF (804/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 19 256 kB Flash Memory (F-ZTAT)
19.11.6 Status Read Mode
1. Status read mode is provided to indicate the type of an abnormal end. It should be used if an
error occurs in auto-program or auto-erase mode.
2. The return code is retained until a command write is performed in a mode other than status
read mode.
Table 19.19 AC Characteristics in Status Read Mode
Conditions: V_CC = 3.3 V ±0.3 V, V_SS = 0 V, T_a = 25°C ±5°C
Item
Symbol Min
Read time after command write tnxtc
20
CE hold time
tceh
0
CE setup time
tces
0
Data hold time
tdh
50
Data setup time
tds
50
Write pulse width
twep
70
OE output delay time
toe

Disable delay time
tdf

CE output delay time
tce

WE rise time
tr

WE fall time
tf

Max






150
100
150
30
30
Unit
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
A17–0
t_ces
t_ceh t_nxtc t_ces
t_ceh t_nxtc
t_nxtc
CE
t_ce
OE
t_f
t_wep
t_r
t_f
t_wep
t_r
t_oe
WE
t_ds
t_dh
t_ds
t_dh
t_df
I/O7–0
H'71
H'71
Note: I/O3 and I/O2 are undefined.
Figure 19.26 Timing Waveforms in Status Read Mode
Rev. 5.00 Sep 11, 2006 page 782 of 916
REJ09B0332-0500