HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 935

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Table 19.66 Command Wait State Transition Time Specifications
Item
Standby release (oscillation
stabilization time)
PROM mode setup time
V
19.29.10 Notes on Memory Programming
• When programming addresses which have previously been programmed, carry out auto-
• When performing programming using PROM mode on a chip that has been
Notes: 1. The flash memory is initially in the erased state when the device is shipped by Renesas
Figure 19.85 Oscillation Stabilization Time, PROM Mode Setup Time, and Power Supply
CC
erasing before auto-programming.
programmed/erased in an on-board programming mode, auto-erasing is recommended before
carrying out auto-programming.
hold time
V
RES
FWE
Note: Except in auto-program mode and auto-erase mode, drive the FWE input pin low.
CC
2. Auto-programming should be performed once only on the same address block.
Technology. For other chips for which the erasure history is unknown, it is
recommended that auto-erasing be executed to check and supplement the initialization
(erase) level.
Additional programming cannot be carried out on address blocks that have already
been programmed.
t
osc1
t
bmv
Symbol
t
t
t
osc1
bmv
dwn
Memory read
mode
Command
wait state
Fall Sequence
Min
30
10
0
Auto-program mode
Auto-erase mode
Rev.6.00 Sep. 27, 2007 Page 905 of 1268
Max
—
—
—
Command
wait state
Normal/
abnormal end
identification
REJ09B0220-0600
t
Section 19 ROM
dwn
Unit
ms
ms
ms