參數(shù)資料
型號: M306H7MC-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100
文件頁數(shù): 34/115頁
文件大小: 3146K
代理商: M306H7MC-XXXFP
Rev.2.10
Oct 25, 2006
Page 25 of 326
REJ03B0152-0210
M306H7MG-XXXFP/MC-XXXFP/FGFP
4. CLOCK GENERATION CIRCUIT
4.
Clock Generation Circuit
The clock generation circuit contains two oscillator circuits as follows:
(1) Main clock oscillation circuit
(2) Sub clock oscillation circuit
Table 4.1 lists the clock generation circuit specifications. Figure 4.1 shows the clock generation circuit.
Figures 4.2 to 4.4 show the clock-related registers.
Table 4.1
CPU registers
CPU clock source
Peripheral function
clock source
Use of clock
Main clock
oscillation circuit
Sub clock
oscillation circuit
Item
CPU clock source
Timer A, B's clock
source
Clock frequency
0 to 16 MHz
(Note 3)
32.768 kHz
Ceramic oscillator
Crystal oscillator
(Note 2)
Usable oscillator
Crystal oscillator
XIN, XOUT
Pins to connect
oscillator
XCIN, XCOUT
Presence
Oscillation stop,
restart function
Presence
Oscillating
Oscillator status
after reset (Note1)
Stopped
Externally derived clock can be input
Other
Note 1. The state that the STARTB pin is held "L" after reset is shown.
The state that the STARTB pin is held "H" after reset is following.
Main clock oscillation circuit: Stopped
Sub clock oscillation circuit: Oscillating
Note 2. If you use "14 Expansion Function (Data acquisition)", be sure to connect a crystal oscillator
between the XIN and XOUT pins.
Note 3. If you use "14 Expansion Function (Data acquisition)", connect a crystal of 10MHz, 12MHz,
14MHz, or 16MHz.
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