D12320VF25V Datasheet, PDF (716/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
Table 17.44 Status Polling Output Truth Table
Pin Names
I/O7
I/O6
I/O0 to I/O5
Internal Operation
in Progress
0
0
0
Abnormal End —
1
0
0
1
0
0
Normal End
1
1
0
17.20.9 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 17.45 Command Wait State Transition Time Specifications
Item
Symbol
Min
Standby release (oscillation tosc1
30
stabilization time)
Programmer mode setup time tbmv
10
VCC hold time
tdwn
0
Max
Unit
—
ms
—
ms
—
ms
VCC
tosc1
tbmv
Memory read
mode
Command
wait state
Auto-program mode
Auto-erase mode
Command
wait state
Normal/
abnormal end
identification tdwn
RES
Command acceptance
Figure 17.59 Oscillation Stabilization Time, Programmer Mode Setup Time, and Power
Supply Fall Sequence
17.20.10 Notes on Memory Programming
• When programming addresses which have previously been programmed, carry out auto-
erasing before auto-programming.
Rev.7.00 Feb. 14, 2007 page 682 of 1108
REJ09B0089-0700