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MMC2107 - Freescale Semiconductor

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

Signal Description<br />

Signal Descriptions<br />

4.4.2 INT Signal Functions<br />

The INT signals have these multiple functions:<br />

• If the SZEN bit in the chip configuration register is set, then<br />

INT[7:6] will be used to reflect the state of the TSIZ[1:0] signals<br />

from the M•CORE.<br />

• If the PSTEN bit in the chip configuration register is set, then<br />

INT[5:2] will be used to reflect the state of the PSTAT[3:0] signals<br />

from the M•CORE.<br />

nc...<br />

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

NOTE:<br />

4.5 Signal Descriptions<br />

4.5.1 Reset Signals<br />

4.5.1.1 Reset In (RESET)<br />

If the SZEN or PSTEN bits are set during emulation mode, then the<br />

corresponding edge port INT functions are lost and will not be emulated<br />

externally.<br />

The default reset values for PUPSCI1 and PUPSCI0 will be 0. Thus, the<br />

pullup function is disabled by default.<br />

This subsection provides a brief description of the signals. For more<br />

detailed information, reference the module section.<br />

These signals are used to either reset the chip or as a reset indication.<br />

This active-low input signal is used as an external reset request.<br />

4.5.1.2 Reset Out (RSTOUT)<br />

This active-low output signal is an indication that the internal reset<br />

controller has reset the chip. When RSTOUT is active, the user may<br />

drive override options on the data bus. RSTOUT is three-stated in<br />

phase-lock loop (PLL) test mode.<br />

RSTOUT may also be used to reflect an indication of an internal interrupt<br />

request.<br />

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

Technical Data<br />

MOTOROLA Signal Description 121<br />

For More Information On This Product,<br />

Go to: www.freescale.com

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