MMC2114 MOTOROLA [Motorola, Inc], MMC2114 Datasheet - Page 133

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

4.8 Functional Description
4.8.1 Reset Configuration
MMC2114 • MMC2113 • MMC2112 — Rev. 1.0
MOTOROLA
Six functions are defined within the chip configuration module:
These functions are described here.
During reset, the pins for the reset override functions are immediately
configured to known states.
pins while in reset.
If the RCON pin is not asserted during reset, the chip configuration and
the reset configuration pin functions after reset are determined by RCON
or fixed defaults, regardless of the states of the external data pins. The
internal configuration signals are driven to levels specified by the RCON
register’s reset state for default module configuration.
D[26, 23:21, 19:16],
PA[4, 2], PB[7:5, 3:0]
RCON
PLLEN
1. If the external RCON pin is not asserted during reset, pin functions are determined by the
2. During reset, the external RCON pin assumes its RCON pin function, but this pin changes
1. Reset configuration
2. Chip mode selection
3. Boot device selection
4. Output pad strength configuration
5. Clock mode selection
6. Module configuration
Freescale Semiconductor, Inc.
default operation mode defined in the RCON register. If the external RCON pin is asserted,
pin functions are determined by the chip operation mode defined by the override values
driven on the external data bus pins.
to the function defined by the chip operation mode immediately after reset. See
For More Information On This Product,
Table 4-6. Reset Configuration Pin States During Reset
Chip Configuration Module (CCM)
Pin
Go to: www.freescale.com
Digital I/O or primary
function
RCON function for all
modes
Not affected
Function
Table 4-6
(2)
Pin
(1)
shows the states of the external
Chip Configuration Module (CCM)
Input
Input
Input
I/O
Output
State
—
—
—
Functional Description
Advance Information
Must be driven
by external logic
Internal weak
pullup device
Must be driven by
external logic
Input
State
Table
4-7.
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