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參數(shù)資料
| 型號(hào)： | M34570E8FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片4位微機(jī)的CMOS |
| 文件頁(yè)數(shù)： | 21/68頁(yè) |
| 文件大?。?/td> | 319K |
| 代理商： | M34570E8FP |
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21
MITSUBISHI MICROCOMPUTERS
4570 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
Fig. 19 Timers structure
Notes 1: Count source is stopped by setting to “0.”
2: When the T1AB instruction is executed after
setting W1
0
to “1,” data is only written to reload
register R1.
Register A
ORCLK
Timer 1 underflow signal
WDF1 WDF2
1/4
1/8
W1
3 (Note 1)
0
1
0
1
W1
2
Prescaler
(TAB1)
Register A
Register A
Register A
Reload control circuit
(TAB2)
(Note 2)
(TAB3)
W3
3
T
2
A
B
Q
R
T
Timer 2 underflow signal
D
9
/T
OUT
D
9
output
Register B
0
1
W2
2
0
1
W1
0(Note 1)
X
IN
T2F
Timer 2
interrupt
T1F
Timer 1
interrupt
Reload register R1 (10)
1/2
System reset
16-bit timer (WDT)
Instruction clock
15
1
16
WRST instruction
Reset signal
Q
R
S
WEF
Timer 2 underflow signal
Timer 1(10)
(T1AB)
Instruction clock
Internal clock generating
circuit (divided by 3)
Frequency
dividing circuit
(divided by 4)
1
0
MR
3
(TAB1)
Register W5
CARRY
Reload register R2 (8)
Timer 2 (8)
Register B
(TR2AB)
(TAB2)
0
1
W2
3(Note 1)
W2
1
,W2
0
00
10
01
11
T3F
Timer 3
interrupt
Register B
(T3AB)
Reload register R3L (8)
Timer 3(8)
Register B
(T3HAB)
Reload register R3H (8)
0
1
W3
3(Note1)
MR
3
0
1
1/2
CARRY
(to timer 1/port CARR)
(TAB3)
16-bit timer underflow signal
0
1
W1
1
W3
1
,W3
0
00
10
01
11
Not available
(T3AB)
T
2
A
B
System clock
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