1014
Chapter 25
Electrical Specifications
User’s Manual U16580EE3V1UD00
25.4.2 External asynchronous memory access write timing
Table 25-7:
External Asynchronous Memory Access Write Timing
Remarks: 1.
T:
2/f
XX
2.
i:
Number of idle states specified by BCC register
3.
w
AS
: Number of waits specified by ASC register
4.
w
D
: Number of waits specified by DWC1, DWC2 register; w
D
≥
1
5.
w:
Number of waits due to external wait signal (WAIT)
6.
n = 0, 1, 3, 4
Parameter
Symbol
MIN.
MAX.
Unit
Address, CSn
→
WR
↓
delay time
<20>
T
DAWR
(1 + w
AS
)T - 20
ns
Address set up (vs. WR
↑
)
<21>
T
SAWR
(1.5 + w
AS
+ w
D
+ w) T - 10
ns
WR
↑
→
address delay time
<22>
T
DWRA
(0.5 + i) T - 5
ns
WR High level width
<23>
T
WWRH
(1.5 + i + w
AS
) T - 15
ns
WR Low level width
<24>
T
WWRL
(0.5 + w + w
D
) T - 12
ns
Data output set up time
(vs. WR
↑
)
<25> T
SODWR
(0.5 + w
AS
+ w
D
+ w) T - 15
ns
Data output hold time
(vs. WR
↑
)
<26> T
HWROD
(0.5 + i) T - 15
ns
WAIT set up time
(vs. address)
<31>
T
SAW
(1 + w
AS
)T - 30
ns
WAIT high level width
<32>
T
WWH
T - 2
ns
Summary of Contents for V850E/PH2
Page 6: ...6 Preface User s Manual U16580EE3V1UD00...
Page 16: ...16 User s Manual U16580EE3V1UD00...
Page 28: ...28 User s Manual U16580EE3V1UD00...
Page 32: ...32 User s Manual U16580EE3V1UD00...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO...
Page 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only User s Manual U16580EE3V1UD00 MEMO...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO...
Page 1052: ...1052 User s Manual U16580EE3V1UD00...
Page 1053: ......