- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄45223 > MC68HC05V7CFNR2 (MOTOROLA INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC05V7CFNR2 |
| 廠(chǎng)商： | MOTOROLA INC |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁(yè)數(shù)： | 157/170頁(yè) |
| 文件大小： | 589K |
| 代理商： | MC68HC05V7CFNR2 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)當(dāng)前第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)
SECTION 11: 16-BIT TIMER
MOTOROLA
Page 73
MC68HC05V7 Specification Rev. 1.0
11.5.1
ICF - Input Capture Flag
1 - Flag set when selected polarity edge is sensed by input capture edge
detector
0 - Flag cleared when TSR and input capture low register ($15) are
accessed
Reset clears this bit.
11.5.2
OCF - Output Compare Flag
1 - Flag set when output compare register contents match the free-running
counter contents
0 - Flag cleared when TSR and output compare low register ($17) are
accessed
Reset clears this bit.
11.5.3
TOF - Timer Overflow Flag
1 - Flag set when free-running counter transition from $FFFF to $0000
occurs
0 - Flag cleared when TSR and counter low register ($19) are accessed
Reset clears this bit.
11.5.4
Bits 0-4 - Not used
Always read zero.
Accessing the timer status register satisfies the first condition required to clear status bits.
The remaining step is to access the register corresponding to the status bit.
A problem can occur when using the timer overflow function and reading the free-running
counter at random times to measure an elapsed time. Without incorporating the proper
precautions into software, the timer overflow flag could unintentionally be cleared if:
1. The timer status register is read or written when TOF is set, and
2. The MSB of the free-running counter is read but not for the purpose of
servicing the flag.
The counter alternate register at address $1A and $1B contains the same value as the free-
running counter (at address $18 and $19); therefore, this alternate register can be read at
any time without affecting the timer overflow flag in the timer status register.
11.6
TIMER DURING WAIT MODE
The CPU clock halts during the WAIT mode, but the timer remains active if turned on prior
to entering wait mode. If interrupts are enabled, a timer interrupt will cause the processor
to exit the WAIT mode.
11.7
TIMER DURING STOP MODE
In the STOP mode, the timer stops counting and holds the last count value if STOP is exited
by an interrupt. If RESET is used, the counter is forced to $FFFC. During STOP, if the
TIMER is on and at least one valid input capture edge occurs at the TCAP pin, the input
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05V7FNR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC05V7FN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC05V7CB | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| MC68HC05V7CFU | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC05X16FU | 8-BIT, MROM, MICROCONTROLLER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05X16 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
| MC68HC05X32 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor HCMOS) microcontroller unit |
| MC68HC05X4 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05X4CDW | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
| MC68HC05X4DW | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。