- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45220 > MC68HC05F8B (FREESCALE SEMICONDUCTOR INC) 8-BIT, MROM, 1.8 MHz, MICROCONTROLLER, PDIP56 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC68HC05F8B |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 1.8 MHz, MICROCONTROLLER, PDIP56 |
| 封裝： | PLASTIC, SDIP-56 |
| 文件頁數(shù)： | 65/126頁 |
| 文件大?。?/td> | 1084K |
| 代理商： | MC68HC05F8B |
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頁第59頁第60頁第61頁第62頁第63頁第64頁當(dāng)前第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
MC68HC05F8
MOTOROLA
5-7
INTERRUPTS
5
INT2E
1 (set)
–
External interrupt IRQ2 enabled.
0 (clear) –
External interrupt IRQ2 disabled.
5.3.3
External Interrupt Flags (INTF1 & INTF2)
INTF1
1 (set)
–
An interrupt on IRQ1 pin has occurred.
0 (clear) –
An interrupt on IRQ1 pin has not occurred.
After servicing this interrupt, this ag should be cleared by writing a “0” to this bit.
INTF2
1 (set)
–
An interrupt on IRQ2 pin has occurred.
0 (clear) –
An interrupt on IRQ2 pin has not occurred.
After servicing this interrupt, this ag should be cleared by writing a “0” to this bit.
5.4
Keyboard Interrupt
Port pins PA0-PA7 can be congured as keyboard interrupt lines with internal pull-up when the
control bits KEYE, KEYX4, KEYX5, KEYX6, and KEYX7 are set. A falling edge of negative pulse
with minimum width of TILIH (250ns) on any congured port A pins will cause a keyboard interrupt
to occur. A keyboard interrupt is recognized by the interrupt ag KEYF in the Miscellaneous
register (bit 4 of address $17). This ag is cleared by writing a logic “0” to this bit.
When the interrupt is recognized, the current state of the machine is pushed onto the stack and
the interrupt mask bit in the condition code register is set. This masks any further interrupt until
the present one is serviced. The keyboard interrupt causes the program counter to vector to
memory location $FFF0 and $FFF1 which contains the starting address of the interrupt’s service
routine.
When congured, the keyboard interrupt lines remain active in during Stop mode. This allows a
keyboard interrupt to wake up the MCU when in Stop mode. See Figure 5-4 for keyboard interrupt
circuit.
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
Miscellaneous Register
$17
POR
INTF1 INTF2
KEYF
r000 ----
r=1 for POR; r=0 for RESET
TPG
41
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
In
c
..
.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC68HC05F8FU | 8-BIT, MROM, 1.8 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC05I8FU | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC05J1DW | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO20 |
| MC68HC05J1CP | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP20 |
| MC68HC05J5AJDWR2 | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC05J1 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS MICROCONTROLLER UNIT |
| MC68HC05J1A | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ACDW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ACP | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
| MC68HC05J1ADW | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。