HD6432646 Hitachi, HD6432646 Datasheet - Page 741

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Table 20-18 Status Read Mode Return Commands
Pin Name I/O7
Attribute
Initial value 0
Indications Normal
Note: I/O2 and I/O3 are undefined.
20.11.7 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
Table 20-19 Status Polling Output Truth Table
Pin Name
I/O7
I/O6
I/O0–I/O5
20.11.8 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 20-20 Stipulated Transition Times to Command Wait State
Item
Standby release (oscillation
stabilization time)
Programmer mode setup time
V
CC
mode.
hold time
Normal
end
decision
end: 0
Abnormal
end: 1
During Internal
Operation
0
0
0
I/O6
Command
error
0
Command
error: 1
Otherwise: 0
I/O5
Program-
ming error
0
Program-
ming
error: 1
Otherwise: 0
Symbol
t
t
t
osc1
bmv
dwn
Abnormal End
1
0
0
I/O4
Erase
error
0
Erasing
error: 1
Otherwise: 0
Min
30
10
0
I/O3
—
0
—
—
0
1
0
I/O2
—
0
—
Max
—
—
—
I/O1
Program-
ming or
erase count
exceeded
0
Count
exceeded: 1
Otherwise: 0
Normal End
1
1
0
Unit
ms
ms
ms
I/O0
Effective
address error
0
Effective
address
error: 1
Otherwise: 0
707