SH7018 Datasheet, PDF (387/431 Pages) Renesas Technology Corp – SuperH™ RISC engine

Table 16.19 Status Read Mode Return Commands
Pin Name I/O7
I/O6
Attribute
Normal
Command
end
error
identification
I/O5
Program-
ming error
I/O4
Erase
error
I/O3
—
Initial value 0
0
0
0
0
Indications Normal
end: 0
Abnormal
end: 1
Command Program- Erasing
—
Error: 1
ming
Error: 1
Otherwise: 0 ^{Error: 1}
Otherwise: 0
Otherwise: 0
Note: I/O2 and I/O3 are undefined at present.
I/O2
—
0
—
I/O1
I/O0
Program- Effective
ming or
address error
erase count
exceeded
0
0
Count
Effective
exceeded: 1 address
Otherwise: 0 Error: 1
Otherwise: 0
16.11.7 Status Polling
1. I/O7 status polling is a flag that indicates the operating status in auto-program/auto-erase
mode.
2. I/O6 status polling is a flag that indicates a normal or abnormal end in auto-program/auto-erase
mode.
Table 16.20 Status Polling Output Truth Table
Pin Name
I/O7
I/O6
I/O0 to I/O5
During Internal
Operation
Abnormal End
0
1
0
0
0
1
0
0
0
Normal End
1
1
0
16.11.8 Programmer Mode Transition Time
Commands cannot be accepted during the oscillation stabilization period or the programmer mode
setup period. After the programmer mode setup time, a transition is made to memory read mode.
Table 16.21 Stipulated Transition Times to Command Wait State
Item
Symbol Min
Standby release (oscillation stabilization time) t_osc1
30
Programmer mode setup time
t _bmv
10
V_CC hold time
t _dwn
0
Max
Unit
—
ms
—
ms
—
ms
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