Datasheet

Enhanced Capture Timer (ECT)
Description of Interrupt Operation
MC9S12DP256 — Revision 1.1
Enhanced Capture Timer (ECT)
Description of Interrupt Operation
The ECT only originates interrupt requests. The following is a description
of how the ECT makes a request and how the MCU should acknowledge
that request. The interrupt vector offset and interrupt number are chip
dependent.
Channel [7:0]
Interrupt
(ectch_int[7:0])
This active high output will be asserted by the module to request a timer
channel 7–0 interrupt to be serviced by the system controller.
Modulus Counter
Interrupt
(ectmcufi_int)
This active high output will be asserted by the module to request a
modulus counter underflow interrupt to be serviced by the system
controller.
Pulse
Accumulator B
Overflow Interrupt
(ectpabo_int)
This active high output will be asserted by the module to request a timer
pulse accumulator B overflow interrupt to be serviced by the system
controller.
Pulse
Accumulator A
Input Interrupt
(ectpaai_int)
This active high output will be asserted by the module to request a timer
pulse accumulator A input interrupt to be serviced by the system
controller.
Pulse
Accumulator A
Overflow Interrupt
(ectpaao_int)
This active high output will be asserted by the module to request a timer
pulse accumulator A overflow interrupt to be serviced by the system
controller.
Timer Overflow
Interrupt
(ectovi_int)
This active high output will be asserted by the module to request a timer
overflow interrupt to be serviced by the system controller.
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Freescale Semiconductor, Inc.
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