1002
Chapter 24
Flash Memory
User’s Manual U16580EE3V1UD00
(4)
RESET pin
When the reset signals of the dedicated flash programmer are connected to the RESET pin that is
connected to the reset signal generator on-board, a conflict of signals occurs. To avoid the conflict
of signals, isolate the connection to the reset signal generator.
When a reset signal is input from the user system in the flash memory programming mode, the
programming operation will not be performed correctly. Therefore, do not input signals other than
the reset signals from the dedicated flash programmer.
Figure 24-14:
Conflict of Signals (RESET Pin)
(5)
Port pins (including NMI)
When the system shifts to the flash memory programming mode, all the pins that are not used for
flash memory programming are in the same status as that immediately after reset. If the external
device connected to each port does not recognize the status of the port immediately after reset,
pins require appropriate processing, such as connecting to V
DD3
via a resistor or connecting to
V
SS3
via a resistor.
(6)
Other signal pins
Connect X1 and X2 in the same status as that in the normal operation mode.
During flash memory programming, input a low level to the DRST pin or leave it open. Do not input
a high level.
(7)
Power supply
Supply the same power (V
DD1
, V
SS1
, V
DD3
, V
SS3
, CV
DD
, CV
SS
, AV
DD
, AV
SS
, AV
REF0
, AV
REF1
) as
in normal operation mode.
V850E/PH2
RESET
Dedicated flash programmer
connection pin
Reset signal generator
Conflict of signals
Output pin
In the flash memory programming mode, the signal the reset signal generator
outputs conflicts with the signal the dedicated flash programmer outputs.
Therefore, isolate the signals on the reset signal generator side.
Содержание MuPD70F3187
Страница 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Страница 16: ...16 User s Manual U16580EE3V1UD00 ...
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Страница 32: ...32 User s Manual U16580EE3V1UD00 ...
Страница 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Страница 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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