參數(shù)資料
型號: MB90523BPFV
廠商: FUJITSU LTD
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP120
封裝: 20 X 20 MM, 3.85 MM HEIGHT, 0.50 MM PITCH, PLASTIC, QFP-120
文件頁數(shù): 63/96頁
文件大?。?/td> 2960K
代理商: MB90523BPFV
MB90520B Series
74
DS07-13707-5E
21. Clock Monitor Function
The clock monitor function outputs the machine clock divided by a specified amount to the clock monitor pin
(CKOT) .
Clock monitor functions
Output frequency of the clock monitor function
Block diagram
Function
Output frequency
Machine clock divided by 2 to 32 (8 settings available)
Interrupts
None
EI2OS support
Not supported by the extended intelligent I/O service (EI2OS) .
FRQ2 to FRQ0
Bits
Machine Clock
Divide Ratio
When
φ = 16 MHz
When
φ = 8 MHz
When
φ = 4 MHz
Period
Frequency
Period
Frequency
Period
Frequency
000B
φ/21
125 ns
8 MHz
250 ns
4 MHz
500 ns
2 MHz
001B
φ/22
250 ns
4 MHz
500 ns
2 MHz
1.0
s1 MHz
010B
φ/23
500 ns
2 MHz
1.0
s1 MHz2.0 s
500 kHz
011B
φ/24
1.0
s
1 MHz
2.0
s
500 kHz
4.0
s
250 kHz
100B
φ/25
2.0
s
500 kHz
4.0
s
250 kHz
8.0
s
125 kHz
101B
φ/26
4.0
s
250 kHz
8.0
s
125 kHz
16.0
s62.5 kHz
110B
φ/27
8.0
s
125 kHz
16.0
s
62.5 kHz
32.0
s
31.25 kHz
111B
φ/28
16.0
s
62.5 kHz
32.0
s
31.25 kHz
64.0
s
15.625 kHz
CKEN FRQ2
CKOT
Pin
FRQ1 FRQ0
3
φ
Internal
data
bus
Prescaler
Count
clock
selector
Output enable
Clock output enable
register (CLKR)
: Undefined
φ
: Machine clock frequency
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