參數(shù)資料
型號(hào): M34502M4-XXXFP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 4.4 MHz, MICROCONTROLLER, PDSO24
封裝: 0.300 INCH, 0.80 MM PITCH, PLASTIC, SSOP-24
文件頁(yè)數(shù): 2/215頁(yè)
文件大?。?/td> 3358K
代理商: M34502M4-XXXFP
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4502 Group User’s Manual
v
List of figures
Fig. 41 Clock control circuit structure ....................................................................................... 1-46
Fig. 42 Switch to ceramic resonance/RC oscillation ............................................................... 1-47
Fig. 43 Handling of XIN and XOUT when operating ring oscillator .......................................... 1-47
Fig. 44 Ceramic resonator external circuit ............................................................................... 1-47
Fig. 45 External RC oscillation circuit ....................................................................................... 1-47
Fig. 46 External clock input circuit ............................................................................................ 1-48
Fig. 47 External 0 interrupt program example-1 ...................................................................... 1-49
Fig. 48 External 0 interrupt program example-2 ...................................................................... 1-50
Fig. 49 External 0 interrupt program example-3 ...................................................................... 1-50
Fig. 50 A-D conversion interrupt program example ................................................................ 1-51
Fig. 51 Analog input external circuit example-1 ...................................................................... 1-51
Fig. 52 Analog input external circuit example-2 ...................................................................... 1-51
Fig. 53 Flow of writing and test of the product shipped in blank ....................................... 1-104
Fig. 54 Pin configuration of built-in PROM version .............................................................. 1-105
CHAPTER 2 APPLICATION
Fig. 2.1.1 Key input by key scan ............................................................................................... 2-10
Fig. 2.1.2 Key scan input timing ................................................................................................ 2-10
Fig. 2.2.1 INT interrupt operation example .............................................................................. 2-17
Fig. 2.2.2 INT interrupt setting example ................................................................................... 2-18
Fig. 2.2.3 Timer 1 constant period interrupt setting example ................................................ 2-19
Fig. 2.2.4 Timer 2 constant period interrupt setting example ................................................ 2-20
Fig. 2.3.1 Peripheral circuit example ......................................................................................... 2-25
Fig. 2.3.2 Watchdog timer function ............................................................................................ 2-26
Fig. 2.3.3 Constant period measurement setting example ..................................................... 2-27
Fig. 2.3.4 CNTR output setting example .................................................................................. 2-28
Fig. 2.3.5 CNTR input setting example ..................................................................................... 2-29
Fig. 2.3.6 Timer start by external input setting example (1) ................................................. 2-30
Fig. 2.3.7 Timer start by external input setting example (2) ................................................. 2-31
Fig. 2.3.8 Watchdog timer setting example .............................................................................. 2-32
Fig. 2.4.1 A-D converter structure ............................................................................................. 2-34
Fig. 2.4.2 A-D conversion mode setting example ................................................................... 2-36
Fig. 2.4.3 Analog input external circuit example-1 .................................................................. 2-37
Fig. 2.4.4 Analog input external circuit example-2 .................................................................. 2-37
Fig. 2.4.5 A-D converter operating mode program example .................................................. 2-37
Fig. 2.5.1 Power-on reset circuit example ................................................................................ 2-39
Fig. 2.5.2 Oscillation stabilizing time after system is released from reset .......................... 2-39
Fig. 2.5.3 Internal state at reset ................................................................................................ 2-40
Fig. 2.6.1 Voltage drop detection circuit ................................................................................... 2-42
Fig. 2.6.2 Voltage drop detection circuit operation waveform example ............................... 2-42
Fig. 2.7.1 Start condition identified example ............................................................................ 2-44
Fig. 2.8.1 Switch to ceramic resonance/RC oscillation .......................................................... 2-50
Fig. 2.8.2 Handling of XIN and XOUT when operating ring oscillator ...................................... 2-50
Fig. 2.8.3 Ceramic resonator external circuit ........................................................................... 2-51
Fig. 2.8.4 External RC oscillation circuit .................................................................................. 2-51
Fig. 2.8.5 Structure of clock control circuit .............................................................................. 2-52
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