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參數(shù)資料
| 型號(hào)： | M34518M2-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP32 |
| 封裝： | 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32 |
| 文件頁(yè)數(shù)： | 143/157頁(yè) |
| 文件大?。?/td> | 1783K |
| 代理商： | M34518M2-XXXFP |
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ML610Q411/ML610Q412/ML610Q415 User’s Manual
Chapter 6
Clock Generation Circuit
6 – 1
6.
Clock Generation Circuit
6.1
Overview
The clock generation circuit generates and provides a low-speed clock (LSCLK), 2
× low-speed clock (LSCLK2), a
high-speed clock (HSCLK), a system clock (SYSCLK), and a high-speed output clock (OUTCLK).
LSCLK,
LSCLK
×2, and HSCLK are time base clocks for the peripheral circuits, SYSCLK is a basic operation clock of CPU,
and OUTCLK is a clock that is output from a port.
For the OUTCLK output port, see Chapter 19, “Port 2”. Additionally, for the STOP mode described in this chapter, see
Chapter 4, “MCU Control Function”, and for BLD, see Chapter 27, “Battery Level Detection Circuit”.
6.1.1
Features
Low-speed clock: 32.768 kHz crystal oscillation mode
ML610Q411/ML610Q412:
32.768kHz Crystal oscillation mode
Capable of generating LSCLK × 2 (64 kHz) to be used for some peripherals.
ML610Q411/ML610Q412:
1/16 of 500kHz RC oscillation mode (31.25kHz)
Capable of generating LSCLK × 2 (62.5kHz) to be used for some peripherals.
High-speed clock: Software selection
500 kHz RC oscillation mode
External clock input mode (Not available on ML610Q415)
6.1.2
Configuration
Figure 6-1 shows the configuration of the clock generation circuit.
FCON0
: Frequency control register 0
FCON1
: Frequency control register 1
*
1
:Not used on ML610Q415
*
2
:The SYSCLK is fixed to HSCLK on ML610Q415
Figure 6-1
Configuration of Clock Generation Circuit
Note:
This LSI starts operation with a clock generated by dividing the 500 kHz RC oscillation frequency by 8 after power-on
or a system reset.
At initialization by software, set the FCON0 or FCON1 register to switch the clock to a required
one.
Operation of ML610Q411/ ML610Q412 is not guaranteed under a condition where a low-speed clock is not
supplied.
XT0*
1
XT1*
1
High-speed
clock generation
circuit
P10/OSC0
P11/OSC1
Low-speed clock
(LSCLK)
High-speed clock
(HSCLK)
System clock
(SYSCLK)
MPX
FCON0, FCON1
Data bus
Divide ratio
selection
1/1, 1/2, 1/4, 1/8
Divide ratio
selection
1/1, 1/2, 1/4, 1/8
High-speed output clock
(OUTCLK)
OSCLK
Low-speed
clock generation
circuit
2
× low-speed clock
(LSCLK
×2)
*
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34518M4-XXXSP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP32 |
| M34519E8FP | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO42 |
| M34519M8-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42 |
| M34520M8A-XXXFP | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP64 |
| M34520E8-XXXSP | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34518M2-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M4-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M6-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518M8-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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