參數(shù)資料
型號(hào)： M38007E1-XXXHP
廠商： Mitsubishi Electric Corporation
元件分類： 圓形連接器
英文描述： Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT08; Number of Contacts:10; Connector Shell Size:12; Connecting Termination:Crimp; Circular Shell Style:Right Angle Plug
中文描述： 8位單片機(jī)
文件頁數(shù)： 101/173頁
文件大小： 4203K
代理商： M38007E1-XXXHP
APPLICATION
2.4 Processor mode
2-53
3800 GROUP USER’S MANUAL
(2) Application example of memory expansion in the case where the
ONW
(One-Wait)
function is used
Outline
:
ONW
function is used when the external memory access is slow.
If “L” level signal is input to the P3
2
/
ONW
pin while the CPU is in the read or write status,
the read or write cycle corresponding to 1 cycle of
φ
is extended. In the extended period,
the
RD
or
WR
signal is kept at the “L” level. The
ONW
function operates only when data is
read from or written into addresses 0000
16
to 0007
16
and addresses 0440
16
to FFFF
16
.
Figure 2.4.7 shows an application example of the
ONW
function.
Fig. 2.4.7 Application example of the
ONW
function
3800 group
CNV
SS
AD
15
8
P5
8
P6
ONW
AD
14
AD
0
DB
0
DB
7
RD
WR
M5M27C256AK-10
M5M5256BP-10
CE
A
0
–A
14
D
0
–D
7
OE
A
0
–A
14
DQ
1
–DQ
8
OE
W
8MHz
V
CC
= 5.0V ± 10 %
External RAM area
(M5M5256BP)
SFR area
Internal RAM area
External RAM area
(M5M5256BP)
External ROM area
(M5M27C256AK)
0000
16
8000
16
0440
16
0040
16
0008
16
FFFF
16
Memory map
74F04
S
–
15
8
8
P4
2
P3
0
, P3
1
EPROM
SRAM
–
2
P7
相關(guān)PDF資料
PDF描述
M38007E1-XXXSP Circular Connector; MIL SPEC:MIL-C-26482, Series I, Crimp; Body Material:Aluminum; Series:PT08; No. of Contacts:10; Connector Shell Size:12; Connecting Termination:Crimp; Circular Shell Style:Right Angle Plug; Body Style:Right Angle
M38007E1-XXXSS 1 watt dc-dc converters
M38000E1-XXXHP 1 watt dc-dc converters
M38000E1-XXXSP 1 watt dc-dc converters
M38000E1-XXXSS 1 watt dc-dc converters
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