- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69028 > MC68HC05T16B (MOTOROLA INC) 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 PDF資料下載
參數(shù)資料
| 型號： | MC68HC05T16B |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| 封裝： | PLASTIC, SDIP-56 |
| 文件頁數(shù)： | 59/128頁 |
| 文件大小： | 734K |
| 代理商： | MC68HC05T16B |
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頁當(dāng)前第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頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
MOTOROLA
4-6
MC68HC05T16
RESETS AND INTERRUPTS
4
4.2.2
Software Interrupt (SWI)
The software interrupt is an executable instruction. The action of the SWI instruction is similar to
the hardware interrupts. The SWI is executed regardless of the state of the interrupt mask in the
condition code register. The service routine address is specied by the contents of memory
location $FFFC and $FFFD.
4.2.3
External Interrupt (IRQ)
The external interrupt IRQ can be software congured for “negative-edge” or “negative-edge and
level” sensitive triggering by the IRQN bit in the Multi-Function Timer register.
IRQN
1 (set)
–
Negative edge triggering for IRQ only.
0 (clear) –
Level and negative edge triggering for IRQ.
When the signal of the external interrupt pin, IRQ, satises the condition selected, an external
interrupt occurs. The actual processor interrupt is generated only if the interrupt mask bit of the
condition code register is also cleared. When the interrupt is recognized, the current state of the
processor is pushed onto the stack and the interrupt mask bit in the condition code register is set.
This masks further interrupts until the present one is serviced. The service routine address is
specied by the contents of $FFF8 & $FFF9.
The interrupt logic recognizes negative edge transitions and pulses (special case of negative
edges) on the external interrupt line. Figure 4-3 shows both a block diagram and timing for the
interrupt line (IRQ) to the processor. The rst method is used if pulses on the interrupt line are
spaced far enough apart to be serviced. The minimum time between pulses is equal to the number
of cycles required to execute the interrupt service routine plus 21 cycles. Once a pulse occurs, the
next pulse should not occur until the MCU software has exited the routine (an RTI occurs). The
second conguration shows several interrupt lines wired-OR to perform the interrupt at the
processor. Thus, if the interrupt lines remain low after servicing one interrupt, the next interrupt is
recognized.
Note:
The internal interrupt latch is cleared in the rst part of the service routine; therefore,
one (and only one) external interrupt pulse could be latched during tILIL and serviced
as soon as the I bit is cleared.
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Multi-Function Timer Register
$1C
TOF
RTIF
TOFIE
RTIE
IRQN WDOG
RT1
RT0
0000 0011
TPG
34
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC705V8CFU | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC705V8B | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56 |
| MC68HC705V8FN | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC705V8CFN | 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PQCC68 |
| MC68HC705X4CDW | 8-BIT, OTPROM, 2.2 MHz, MICROCONTROLLER, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05V12 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontreller Unit |
| MC68HC05V12CFN | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:General Release Specification |
| MC68HC05X16 | 制造商:FREESCALE 制造商全稱: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: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:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。