mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 209

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11
Edge Port Module (EPORT)
11.1
The edge port module (EPORT) has seven external interrupt pins, IRQ7–IRQ1. Each pin can be configured
individually as a level-sensitive interrupt pin, an edge-detecting interrupt pin (rising edge, falling edge, or
both), or a general-purpose input/output (I/O) pin. See
11.2
This section describes the operation of the EPORT module in low-power modes. For more information on
low-power modes, see
low-power modes, and describes how this module may exit from each mode.
Freescale Semiconductor
Introduction
Low-Power Mode Operation
The low-power interrupt control register (LPICR) in the System Control
Module specifies the interrupt level at or above which is needed to bring the
device out of a low-power mode.
EPPAR[2n, 2n + 1]
Synchronizer
EPDDR[n]
EPPDR[n]
EPIER[n]
Chapter 7, “Power
EPDR[n]
EPFR[n]
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Figure 11-1. EPORT Block Diagram
Edge Detect
Rising Edge
of System Clock
Logic
Management.”
NOTE
Figure
D0
D1
Mode
Stop
Table 11-1
Q
11-1.
IRQx PIN
shows EPORT module operation in
D0
D1
Q
To Interrupt
Controller
11-1