參數(shù)資料
型號: M34551E8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, MICROCONTROLLER, PQFP48
封裝: 7 X 10 MM, 0.65 MM PITCH, PLASTIC, QFP-48
文件頁數(shù): 81/154頁
文件大?。?/td> 1778K
代理商: M34551E8-XXXFP
FUNCTIONAL BLOCK OPERATIONS
4551 Group User’s Manual
HARDWARE
1-21
Fig. 19 Timers structure
Frequency
dividing circuit
(divided by 3)
XIN
XCIN
Timer 1
interrupt
T1F
INSTCK
ORCLK
Carrier wave
output control
Frequency
dividing circuit
(divided by 4)
Reload register R1 (8)
Timer 1 (8)
Register B
Register A
(T1AB)
(TAB1)
(Note 1)
0
1
W20
MR0
0
1
W11, W10
00,01
10
11
1/4
1/8
W13
0
1
0
1
W12
Prescaler
ORCLK
MR3
0
1
(Note 2)
1
2
STCK
CARRY
Count source is stopped by setting to “0.”
When the T1AB instruction is executed after
setting W20 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
1
2
Timer LC (4)
Reload register RLC (4)
LCD clock
Count
source
ORCLK
Timer 2
interrupt
T2F
Count source
W23
0
1
W22, W21
00
01
Not available
Q
R
S
WEF
Reset signal
WRST instruction
System
reset
To port CARR
10,11
(Note 1)
0
1
W30
1
0
W31
1
03
25
47
69
812 13
10 11
STCK
Q
D
T
WDF
(Note 3)
Notes 1:
2:
3:
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