SH7055S Datasheet, PDF (842/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

22.9.6 Status-Read Mode
(1) Status-read mode is used to determine the type of an abnormal termination. Use this mode
when automatic programming or automatic erasure ends abnormally.
(2) The return code is retained until writing of a command that selects a mode other than status-
read mode.
Table 22.16 lists the return codes of status-read mode.
For the AC characteristics in status-read mode, see section 22.10.2, AC Characteristics and
Timing in programmer Mode.
Table 22.16 Return Codes of Status-Read Mode
Pin
Name
I/O7
I/O6
I/O5
I/O4
I/O3 I/O2 I/O1
I/O0
Attribute Normal Command Programming Erasure — — Programming Invalid
end
error
error
error
or erase count address
indicator
exceeded
error
Initial
0
0
0
0
0
0
0
0
value
Indication Normal Command Programming Erasure — — Count
Invalid
end: 0
error: 1
error: 1
error:1
exceeded: 1 address
Abnorma Otherwise Otherwise: 0 Otherwise
Otherwise: 0 error: 1
l end: 1 : 0
:0
Otherwise
:0
Note: I/O2 and I/O3 are undefined pins.
22.9.7 Status Polling
(1) The I/O7 status-polling output is a flag that indicates the operating status in auto-program or
auto-erase mode.
(2) The I/O6 status-polling output is a flag that indicates normal/abnormal end of auto-program or
auto-erase mode.
Table 22.17 Truth Table of Status-Polling Output
Pin Name
I/O7
I/O6
I/O0 to I/O5
In Progress
0
0
0
Abnormal End —
1
0
0
1
0
0
Normal End
1
1
0
Rev.2.0, 07/03, page 804 of 960