
568
Table 15-21 Status Read Mode Return Commands
Pin Name
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1I/O0
Attribute
Normal
end
decision
Command
error
Program-
ming error
Erase
error
—
Program-
ming or
erase count
exceeded
Effective
address error
Initial value 00000
0
Indications Normal
end: 0
Abnormal
end: 1
Command
error: 1
Otherwise: 0
Program-
ming
error: 1
Otherwise: 0
Erasing
error: 1
Otherwise: 0
—
Count
exceeded: 1
Otherwise: 0
Effective
address
error: 1
Otherwise: 0
Note:
I/O2 and I/O3 are undefined.
15.13.7
Status Polling
1. The I/O7 status polling flag indicates the operating status in auto-program/auto-erase mode.
2. The I/O6 status polling flag indicates a normal or abnormal end in auto-program/auto-erase
mode.
Table 15-22 Status Polling Output Truth Table
Pin Name
During Internal
Operation
Abnormal End
—
Normal End
I/O7
0101
I/O6
0011
I/O0–I/O5
0000
15.13.8
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 15-23 Stipulated Transition Times to Command Wait State
Item
Symbol
Min
Max
Unit
Notes
Standby release (oscillation
stabilization time)
t
osc1
30
ms
Programmer mode setup time
t
bmv
10
ms
V
CC hold time
t
dwn
0ms