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MMC2107 - Freescale Semiconductor

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Signal Description<br />

<strong>Freescale</strong> <strong>Semiconductor</strong>, Inc.<br />

4.5.3.8 Address Bus (A[22:0])<br />

These output signals provide the address for the current bus transfer.<br />

4.5.3.9 Enable Byte (EB[3:0])<br />

These output signals indicate which byte of data is valid during external<br />

cycles.<br />

4.5.3.10 Chip Select (CS[3:0])<br />

nc...<br />

<strong>Freescale</strong> <strong>Semiconductor</strong>, I<br />

4.5.3.11 Output Enable (OE)<br />

4.5.4 Edge Port Signals<br />

4.5.4.1 External Interrupts (INT[7:6])<br />

4.5.4.2 External Interrupts (INT[5:2])<br />

These output signals select external devices for external bus<br />

transactions.<br />

This output signal indicates when an external device can drive data<br />

during external read cycles.<br />

These signals are used by the edge port module.<br />

These bidirectional signals function as either external interrupt sources<br />

or GPIO. Also, these signals may be used to reflect the internal TSIZ[1:0]<br />

signals and externally to provide an indication of the M•CORE transfer<br />

size.<br />

These bidirectional signals function as either external interrupt sources<br />

or GPIO. Also, these signals may be used to reflect the internal<br />

PSTAT[3:0] signals and externally to provide an indication of the<br />

M•CORE processor status.<br />

Technical Data <strong>MMC2107</strong> – Rev. 2.0<br />

124 Signal Description MOTOROLA<br />

For More Information On This Product,<br />

Go to: www.freescale.com

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