186
Chapter 5
Memory Access Control Function (
μ
PD70F3187 only)
User’s Manual U16580EE3V1UD00
Figure 5-2:
SRAM, External ROM, External I/O Access Timing (3/8)
(c) Read (Data Wait, Idle State Inserted)
Notes: 1.
CSn output levels depend on the accessed area when enabled by BCT0 and BCT1
registers.
2.
BEN0 to BEN3 output levels depend on the accessed type (byte, half-word, or word) and
the external bus size (8, 16, or 32 bits) specified by the BSC register
Remarks: 1.
n = 0, 1, 3, 4
2.
Bus clock = f
XX
/2
3.
The circle indicates the sampling timing.
4.
The dashed line indicates the high impedance state.
Bus clock
A0 to A21 (output)
CSn (output)
RD (output)
WR (output)
H
TI
T1
TW
T2
Address
Note 1
D0 to D31 (input)
BEN0
BEN3
to
(output)
WAIT (input)
Note 2
Data
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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