- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69010 > M34501M4-XXXFP 4-BIT, MROM, MICROCONTROLLER, PDSO20 PDF資料下載
參數(shù)資料
| 型號： | M34501M4-XXXFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| 封裝： | 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20 |
| 文件頁數(shù)： | 39/116頁 |
| 文件大小： | 859K |
| 代理商： | M34501M4-XXXFP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁當(dāng)前第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁
4501 Group
Rev.3.01
2005.02.07
page 29 of 112
REJ03B0104-0301
(8) Timer input/output pin (P12/CNTR pin)
CNTR pin is used to input the timer 2 count source and output the
timer 1 and timer 2 underflow signal divided by 2.
The P12/CNTR pin function can be selected by bit 0 of register W6.
The CNTR output signal can be selected by bit 1 of register W6.
When the CNTR input is selected for timer 2 count source, timer 2
counts the falling waveform of CNTR input.
Fig. 23 Count timing diagram at CNTR input
(9) Precautions
Note the following for the use of timers.
Prescaler
Stop the prescaler operation to change its frequency dividing ra-
tio.
Count source
Stop timer 1 or 2 counting to change its count source.
Reading the count value
Stop timer 1 or 2 counting and then execute the TAB1 or TAB2
instruction to read its data.
Writing to the timer
Stop timer 1 or 2 counting and then execute the T1AB or T2AB
instruction to write its data.
Writing to reload register R1
When writing data to reload register R1 while timer 1 is operat-
ing, avoid a timing when timer 1 underflows.
0316
0216
0116
0016
FF16
FE16
CNTR input
Timer 2 count
Timer 2 interrupt
request flag
(T2F)
(Note)
Note: This is an example when “FF16” is set to timer 2 reload register R2L.
Timer 1 and timer 2 count start timing and count time when op-
eration starts
Count starts from the first rising edge of the count source (2) af-
ter timer 1 and timer 2 operations start (1).
Time to first underflow (3) is shorter (for up to 1 period of the
count source) than time among next underflow (4) by the timing
to start the timer and count source operations after count starts.
When selecting CNTR input as the count source of timer 2, timer
2 operates synchronizing with the falling edge of CNTR input.
Fig. 24 Timer count start timing and count time when opera-
tion starts (T1, T2)
(1) Timer
Count Source
Timer Value
Timer Underflow
Signal
3
21
032
103
2
Count Source
(CNTR input)
(2)
(3)
(4)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M34501E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
| M34502M2-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34502M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO24 |
| M34506M4-XXXFP | 4-BIT, MROM, MICROCONTROLLER, PDSO20 |
| M34506E4FP | 4-BIT, OTPROM, MICROCONTROLLER, PDSO20 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34502E4 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34502E4FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-BIT CISC SINGLE-CHIP MICROCOMPUTER 4500 SERIES |
| M34502M2 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34502M2-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34502M4 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。