MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Technical Data — MMC2107
Section 12. Edge Port Module (EPORT)
12.1 Contents
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12.2 Introduction
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
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 Technical Data
MOTOROLA Edge Port Module (EPORT) 261
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