MMC2107 - Freescale Semiconductor

Freescale Semiconductor, Inc.
Technical Data — MMC2107
Section 20. Chip Select Module
20.1 Contents
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Freescale Semiconductor, I
20.2 Introduction
20.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .521
20.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .522
20.4 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .523
20.5 Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .524
20.6 Memory Map and Registers . . . . . . . . . . . . . . . . . . . . . . . . . .524
20.6.1 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .524
20.6.2 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .525
20.7 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .530
20.8 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .531
The chip select module provides chip enable signals for external
memory and peripheral devices. The chip selects can also be
programmed to terminate bus cycles. Up to four asynchronous chip
select signals are available.
MMC2107 – Rev. 2.0 Technical Data
MOTOROLA Chip Select Module 521
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