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68HC05CL48 Datasheet(PDF) 37 Page - Motorola, Inc

No. de pieza 68HC05CL48
Descripción Electrónicos  SPECIFICATION (General Release)
PDF  145 Pages
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Fabricante Electrónico  MOTOROLA [Motorola, Inc]
Página de inicio  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

68HC05CL48 Datasheet(HTML) 37 Page - Motorola, Inc

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June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
INTERRUPTS
MOTOROLA
REV 2.0
4-5
Figure 4-2. External Interrupts
IRQ pin
INTO bit
I bit (CCR)
External
Power-On Reset
External Reset
External Interrupt
DQ
CK
R
Being Serviced
Interrupt
Request
(read of vectors)
(a) Interrupt Functional Block Diagram
IRQ
IRQ1
IRQn
IRQ
(MCU)
tILIH
tILIL
tILIH
Edge-sensitive Trigger Condition
The minimum pulse width tILIH is one
The period tILIL should not be less than the
number of cycles it takes to execute the
interrupt service routine plus 21 cycles
Level-sensitive Trigger Condition
If after servicing an interrupt, the IRQ
Normally used with pull-up resistor for
remains low, then the next interrupt is
recognized.
Wire-Ore connected
(b) Interrupt Mode Diagram
internal bus period.



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