- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄69026 > MC68HC05L25PB (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC05L25PB |
| 廠商： | FREESCALE SEMICONDUCTOR 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, PQFP52 |
| 封裝： | TQFP-52 |
| 文件頁(yè)數(shù)： | 136/152頁(yè) |
| 文件大?。?/td> | 897K |
| 代理商： | MC68HC05L25PB |
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)當(dāng)前第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)
Time Base
MC68HC05L25 Data Sheet, Rev. 3.1
84
Freescale Semiconductor
Time base interrupt flag (TBIF) is set every period and an interrupt is requested if the enable bit (TBIE) is
set. The clock divided by 128, 4096, 8192, or 16,384 is used to set TBIF, and this clock is selected by the
TBR1 and TBR0 bits in the TBCR2 register.
9.2.4 COP
The computer operating properly (COP) watchdog timer on the MC68HC05L25 is controlled by the COPE
and COPC bits in the TBCR2 register.
The COP uses the same clock as TBI that is selected by the TBR1 and TBR0 bits. The TBI clock is divided
by four and overflow of this divider generates COP timeout reset if the COP enable (COPE) bit is set. The
COP timeout reset has the same vector address as power-on and external RESET. To prevent the COP
timeout, the COP divider is cleared by writing a one to the COP clear (COPC) bit.
When the time base divider is driven by the OSC clock, the clock for the divider is suspended during stop
mode or when FOSCE is equal to zero. This may cause stretching of the COP period or no COP timeout
reset occurring when there is a processing error. It is recommended that the XOSC clock be used as the
clock source for time base to avoid these problems.
When the COP is enabled during stop mode and the time base is driven by the XOSC clock, the divider
does not stop counting and the COPC bit must be triggered to prevent the COP timeout. It is
recommended that the COP watchdog should be disabled for a system that must have intentional use of
the stop mode period longer than the COP timeout period.
Table 9-2. Time Base Interrupt Frequency
TBCR2
Divide
Ratio
Frequency (Hz)
TBR1 TBR0
OSC = 4.0 MHz
OSC = 4.1943 MHz
XOSC = 32.768 kHz
00
TBCLK
÷ 128
244
256
01
TBCLK
÷ 4096
7.63
8.00
10
TBCLK
÷ 8192
3.81
4.00
11
TBCLK
÷
16,384
1.91
2.00
Table 9-3. COP Timeout Period
TBCR2
COP Period (ms)
TBR1
TBR0
OSC = 4.0 MHz
OSC = 4.1943 MHz
XOSC = 32.768 kHz
Min
Max
Min
Max
Min
Max
0
12.3
16.4
11.7
15.6
11.7
15.6
0
1
393
524
375
500
375
500
1
0
786
1048
750
1000
750
1000
1
1573
2097
1500
2000
1500
2000
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05LJ5P | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16 |
| MC68HC05M4CFN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC05M4MFN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC05P1ADWR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28 |
| MC68HSC05P1ADWR2 | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05L28 | 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 |
| MC68HC05L28B | 制造商:MOTOROLA 制造商全稱(chēng):Motorola, Inc 功能描述:Flexible general-purpose microcomputer |
| MC68HC05L2B | 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 |
| MC68HC05L2CB | 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 |
| MC68HC05L6 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:8-Bit Microcomputer with Liquid Crystal Driver Circuitry |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。