參數(shù)資料
型號(hào): MB90523APFV
廠商: FUJITSU LTD
元件分類(lèi): 微控制器/微處理器
英文描述: 16-bit Proprietary Microcontroller
中文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP120
封裝: PLASTIC, QFP-120
文件頁(yè)數(shù): 73/99頁(yè)
文件大小: 978K
代理商: MB90523APFV
MB90520A/520B Series
73
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)
None
Not supported by the extended intelligent I/O service (EI
2
OS) .
Interrupts
EI
2
OS support
FRQ2 - 0
Bits
Machine Clock
Divide Ratio
When
φ
=
16 MHz
Period
When
φ
=
8 MHz
Period
When
φ
=
4 MHz
Period
Frequency
Frequency
Frequency
000
B
φ
/2
1
φ
/2
2
φ
/2
3
φ
/2
4
φ
/2
5
φ
/2
6
φ
/2
7
φ
/2
8
125 ns
8 MHz
250 ns
4 MHz
500 ns
1.0
μ
s
2.0
μ
s
4.0
μ
s
8.0
μ
s
16.0
μ
s
32.0
μ
s
64.0
μ
s
2 MHz
001
B
250 ns
4 MHz
500 ns
1.0
μ
s
2.0
μ
s
4.0
μ
s
8.0
μ
s
16.0
μ
s
32.0
μ
s
2 MHz
1 MHz
010
B
500 ns
1.0
μ
s
2.0
μ
s
4.0
μ
s
8.0
μ
s
16.0
μ
s
2 MHz
1 MHz
500 kHz
011
B
1 MHz
500 kHz
250 kHz
100
B
500 kHz
250 kHz
125 kHz
101
B
250 kHz
125 kHz
62.5 kHz
110
B
125 kHz
62.5 kHz
31.25 kHz
111
B
62.5 kHz
31.25 kHz
15.625 kHz
CKENFRQ2
CKOT
Pin
FRQ1 FRQ0
3
φ
I
Prescaler
Count
clock
selector
Output enable
Clock output enable
register (CLKR)
φ
: Undefined
: Machine clock frequency
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參數(shù)描述
MB90523B 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
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MB90540 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90540G 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller