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參數(shù)資料
| 型號(hào)： | M37471M4-XXXSP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 30/46頁 |
| 文件大?。?/td> | 646K |
| 代理商： | M37471M4-XXXSP |
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30
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 25 Block diagram of clock generating circuit
Fig. 26 Structure of CPU mode register
Q
R
S
Q
Q
R
R
S
S
Q
R
S
X
IN
X
OUT
1/2
1/8
Reset
STP instruction
Reset
Interrupt disable flag I
Interrupt request
STP
instruction
WIT
instruction
Internal clock
φ
X
CIN
1/2
Timer 4
Timer 3
T34M
0
T34M
1
T34M
2
X
COUT
CM
6
CM
7
CM
7
(Note 1)
Notes 1 :
Refer to Timer 3 of [Figure 6 Block diagram of timer 1 through 4]
2 :
7470 group does not have X
CIN
input and X
COUT
output.
Select gate : At reset, shaded
side is connected
b7
b0
CPU mode register
(Address 00FB
16
)
These bits must always be set to “0”.
Stack page selection bit (Note 1)
0 : In page 0 area
1 : In page 1 area
Nothing is allocated (The value is undefined at reading)
S5
0
, P5
1
/X
, X
COUT
selection bit (Note 2)
0 : P5
0
, P5
1
1 : X
CIN
, X
COUT
X
COUT
drive capacity selection bit (Note 2)
1 : High
Clock (X
-X
) stop bit (Note 2)
0 : Oscillates
1 : Stops
Internal system clock selection bit (Note 2)
0 : X
IN
-X
OUT
selected (normal mode)
1 : X
CIN
-X
COUT
selected (low-speed mode)
Notes 1 :
In the M37470M2, M37470M4/E4, M37471M2, M37471M4/E4, set this bit to “0”.
2 :
In the 7470 group, set this bit to “0”.
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