MMC2107 Datasheet, PDF (261/618 Pages) –

Freescale Semiconductor, Inc.
Technical Data — MMC2107
Section 12. Edge Port Module (EPORT)
12.1 Contents
12.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
12.3 Low-Power Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 262
12.3.1 Wait and Doze Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
12.3.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .263
12.4 Interrupt/General-Purpose I/O Pin Descriptions . . . . . . . . . . . 263
12.5 Memory Map and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 263
12.5.1 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
12.5.2 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
12.5.2.1 EPORT Pin Assignment Register . . . . . . . . . . . . . . . . . 264
12.5.2.2 EPORT Data Direction Register. . . . . . . . . . . . . . . . . . .266
12.5.2.3 Edge Port Interrupt Enable Register . . . . . . . . . . . . . . . 267
12.5.2.4 Edge Port Data Register . . . . . . . . . . . . . . . . . . . . . . . . 268
12.5.2.5 Edge Port Pin Data Register . . . . . . . . . . . . . . . . . . . . . 268
12.5.2.6 Edge Port Flag Register. . . . . . . . . . . . . . . . . . . . . . . . . 269
12.2 Introduction
The edge port module (EPORT) has eight external interrupt pins. Each
pin can be configured individually as a low 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 Figure 12-1.
MMC2107 – Rev. 2.0
MOTOROLA
Edge Port Module (EPORT)
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Technical Data
261