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參數(shù)資料
| 型號(hào)： | M34551M8 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTER |
| 中文描述： | 單芯片4位CMOS微機(jī)紅外遙控器 |
| 文件頁(yè)數(shù)： | 19/68頁(yè) |
| 文件大?。?/td> | 698K |
| 代理商： | M34551M8 |
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19
MITSUBISHI MICROCOMPUTERS
4551 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for
INFRARED REMOTE CONTROL TRANSMITTER
Fig. 19 Timers structure
Frequency
dividing circuit
(divided by 3)
X
IN
X
CIN
Timer 1
interrupt
T1F
INSTCK
ORCLK
Carrier wave
output control
Frequency
dividing circuit
(divided by 4)
Reload register R1 (8)
(T1AB)
(Note 2)
Timer 1 (8)
Register B
Register A
(TAB1)
(Note 1)
0
1
W2
0
MR0
0
1
W1
1
,
W1
0
00,01
10
11
1/4
1/8
W1
3
0
1
0
1
W1
2
Prescaler
ORCLK
MR
3
0
1
12
STCK
CARRY
Count source is stopped by setting to “0.”
When the T1AB instruction is executed after
setting W2
0
to “1,” data is written only to
reload register R1.
When the contents of W2
3
changes from “0”
to “1,” the count value of timer 2 is initialized.
Timer 2
12
Timer LC (4)
Reload register LC (4)
LCD clock
Count
source
ORCLK
Timer 2
interrupt
T2F
Count
source
W2
3
0
1
W2
2,
W2
1
00
01
Not available
10,11
Q
R
S
WEF
Reset signal
WRST instruction
System
reset
To port CARR
(Note 1)
0
1
W3
0
1
0
W3
1
1
0
3
2
5
4
7
6
9
8
12 13
10 11
STCK
Q
D
T
WDF
(Note 3)
Notes 1:
2:
3:
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