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User’s Manual U16580EE3V1UD00
Chapter 21
Reset Function
21.1 Features
•
Reset function by RESET input
•
Forced reset function by DCU (refer to
”On-Chip Debug Function (OCD)” on
•
Reset generator (RG) eliminates noise from the RESET pin.
21.2 Configuration
During a system reset, most pins (all except the DCK, DRST, DMS, DDI, DDO, RESET, X2, V
DD10
to
V
DD15
, V
SS10
to V
SS15
, V
DD30
to V
DD37
, V
SS30
to V
SS37
, CV
DD
, CV
SS
, AV
DD
, AV
REF0
, AV
REF1
, AV
SS0
and AV
SS1
pins) enter the high-impedance state.
Therefore, if an external device always requires a defined input level (e.g. external memory) a pull-up
(or pull-down) resistor must be connected to each concerned output pin to prevent signal lines from
floating. If no resistor is connected, the external device may be destroyed when these pins enter the
high-impedance state.
Содержание MuPD70F3187
Страница 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Страница 16: ...16 User s Manual U16580EE3V1UD00 ...
Страница 28: ...28 User s Manual U16580EE3V1UD00 ...
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 ...
Страница 1052: ...1052 User s Manual U16580EE3V1UD00 ...
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