Specifications

30 Motorola 56F8300 Hybrid Controller Family Motorola
The Pace-Setting Performance and Features of the 56F8300 Hybrid Controllers
3.2.12 Computer Operating Properly (COP)
The Computer Operating Properly (COP) module assists software recovery from runaway code. The
COP is a free-running down counter and once enabled, is designed to generate a reset when reaching
zero. Software must periodically service the COP to clear the counter and prevent a reset.
Some of the features and benefits of the COP Module:
• Free-running counter designed to generate a chip-wide reset on overflow
• The length of the time-out period is programmable
• Programmable Wait and Stop mode operation
3.2.13 General Purpose Input/Output (GPIO)
The General Purpose Input/Output (GPIO) module allows direct read or write access to pin values, or
the ability to assign a pin to be used as an external interrupt. All of the digital pins for the on-board
peripherals can also be individually assigned to be GPIO and individually assigned a direction. Each
GPIO has programable pull-ups. The GPIO also has a push-pull mode to efficiently implement a
keypad interface.
The GPIO module’s features include:
• Individual control for each pin to be in either Normal or GPIO mode
• Individual direction control for each pin in GPIO mode
• Individual pull-up enable control for each pin in either Normal or GPIO mode
• Supports use with a keypad interface with push-pull I/O
• Ability to monitor pin logic values, even when GPIO are not enabled by using the
GPIO_X_RAWDATA register
• Interrupt assert capability
3.2.14 JTAG/EOnCE Module
The enhanced on-board emulation module enables true full-rate emulation without the need for
expensive hardware emulators. Simply attach to the processor, using the industry standard JTAG
interface and you can perform powerful, non-intrusive real-time debugging. Some of features and
benefits of the JTAG/EOnCE module are:
• Both are accessed through a common JTAG/EOnCE interface
• Retains debug control in target system
• System-level debugging at one of three levels:
— Non-intrusive real-time debug
— Minimally-intrusive real-time Debug
— Breakpoint and Step mode; core is halted
• Nexus Level 0-compliant
• Real-time data exchange through the JTAG port
• Advanced breakpoint capability
• Change of flow buffer
• Event viewing through a terminal
• Resources accessible through JTAG or through the core
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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