MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 113

• Manufacturer Part Number: MMC2114
• Description: M CORE Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

3.5 Signal Descriptions
3.5.1 Reset Signals
3.5.1.1 Reset In (RESET)
3.5.1.2 Reset Out (RSTOUT)
3.5.2 Phase-Lock Loop (PLL) and Clock Signals
3.5.2.1 External Clock In (EXTAL)
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
This subsection provides a brief description of the signals. For more
detailed information, reference the specific module section.
These signals are used to either reset the chip or as a reset indication.
This active-low input signal is used as the external reset request. Reset
places the CPU in supervisor mode with default settings for all register
bits.
This active-low output signal is an indication that the internal reset
controller has reset the chip. When RSTOUT is active, the user may
drive override configuration options on the data bus. See
Configuration During
loop (PLL) test mode.
RSTOUT may also be used to reflect an indication of an internal interrupt
request.
These signals are used to support the on-chip clock generation circuitry.
This input signal is always driven by an external clock input except when
used as a connection to an external crystal when the internal oscillator
circuit is used. The clock source is configured during reset.
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
Signal Description
Reset. RSTOUT is three-stated in phase-lock
Advance Information
Signal Descriptions
Signal Description
Table 4-7.
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