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參數資料
| 型號： | M30240M4-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, MROM, MICROCONTROLLER, PQFP80 |
| 封裝： | 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數： | 62/125頁 |
| 文件大?。?/td> | 753K |
| 代理商： | M30240M4-XXXFP |
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Mitsubishi microcomputers
M16C / 24 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
43
CONFIDENTIAL
Preliminary Specifications REV.B
Specifications in this manual are tentative and subject to change
Frequency Synthesizer Circuit
The FSC0 bit in the FSC Control Register enables the frequency synthesizer block. When disabled
(FSC0 = "0"), fVCO is held at either a high or low state. When the frequency synthesizer control bit is
active (FSC0 = "1"), a lock status (LS = "1") indicates that fSYN and fVCO are the correct frequency. The
LS and FSCO control bits in the FSC Control register are shown in Figure 27.
When using the frequency synthesizer, a low-pass filter must be connected to the LPF pin.
Once the frequency synthesizer is enabled, a delay of 2-5ms is recommended before the output of the
frequency synthesizer is used. This is done to allow the output to stabilize. It is also recommended that
none of the registers be modified once the frequency synthesizer is enabled as it will cause the output
to be temporarily (2-5ms) unstable. The CPU and USB clock sources are selecxted via the Frequency
Synthesizer Clock Control register (FSCCR). See Figure 28
Figure 27:
Frequency Synthesizer Control Register (FSC)
Figure 28:
Frequency Synthesizer Clock Control Register (FSCCR)
FSE
Frequency Synthesizer Enable - Bit 0
0: Disabled
1: Enabled
VCO1,0
VCO Gain Control - Bits 2,1
Bit 2
Bit 1
0
0:
Lowest Gain (recommended)
0
1:
Low Gain
1
0:
High Gain
1
1:
Highest Gain
Bits 4,3
Reserved (Read/Write “0”)
CHG1,0
LPF Current Control - Bits 6,5
Bit 6
Bit 5
0
0:
Disabled
0
1:
Low Current
1
0:
Intermediate Current (recommended)
1
1:
High Current
LS
Frequency Synthesizer Lock Status (Read Only; Write “0”) - Bit 7
0: Unlocked
1: Locked
MSB
7
LSB
0
CHG0
VCO0
FSE
Address: 03DC16
Access: R/W
Reset:
6016
VCO1
LS
CHG1
Reserved
FSCCR0
Clock Source Selection- Bit 0
0: Xin
1: fSYN
FSCCR1
USB Clock Source Selection- Bit 1
0: fUSB = fVCO
1: fUSB = fXin
Bits 7-2
Reserved (Read/Write “0”)
MSB
7
LSB
0
FSCCR1
FSCCR0
Address: 03DB16
Access: R/W
Reset:
0016
Reserved
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M30240M5 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M5-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M6 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M6-XXXFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30240M7 | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
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