Status Read Mode - Renesas H8 Series Hardware Manual

A15−A0
CE
OE
WE
I/O7
I/O6
I/O5−I/O0
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 6.19 shows the AC characteristics and 6.20 shows the return codes.
t t t
ces ceh nxtc
t
wep
t t
f r
t t
ds dh
H'20
Figure 6.18 Auto-Erase Mode Timing Waveforms
t t
ests spa
t
erase
Erase end
decision signal
Erase normal
end
decision signal
H'20 H'00
Rev. 7.00 Mar 10, 2005 page 185 of 652
Section 6 ROM
t
nxtc
REJ09B0042-0700