mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 56
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mcf5407
Manufacturer Part Number
mcf5407
Description
Mcf5407 Coldfire Integrated Microprocessor User
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5407.pdf
(546 pages)
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ColdFire Module Description
or 32-bit ports. The base address, access permissions, and internal bus transfer terminations
are programmable with configuration registers for each chip select. CS0 also provides
global chip select functionality of boot ROM upon reset for initializing the MCF5407.
1.3.8.3 16-Bit Parallel Port Interface
A 16-bit general-purpose programmable parallel port serves as either an input or an output
on a pin-by-pin basis.
1.3.8.4 Interrupt Controller
The interrupt controller provides user-programmable control of ten internal peripheral
interrupts and implements four external fixed interrupt-request pins. Each internal interrupt
can be programmed to any one of seven interrupt levels and four priority levels within each
of these levels. Additionally, the external interrupt request pins can be mapped to levels 1,
3, 5, and 7 or levels 2, 4, 6, and 7. Autovector capability is available for both internal and
external interrupts.
1.3.8.5 JTAG
To help with system diagnostics and manufacturing testing, the MCF5407 processor
includes dedicated user-accessible test logic that complies with the IEEE 1149.1a standard
for boundary-scan testability, often referred to as the Joint Test Action Group, or JTAG. For
more information, refer to the IEEE 1149.1a standard.
1.3.9 System Debug Interface
The ColdFire processor core debug interface is provided to support system debugging in
conjunction with low-cost debug and emulator development tools. Through a standard
debug interface, users can access real-time trace and debug information. This allows the
processor and system to be debugged at full speed without the need for costly in-circuit
emulators. The debug unit in the MCF5407 is a compatible upgrade to the MCF52xx and
MCF53xx debug modules with added breakpoint registers and support for I/O interrupt
request servicing while in emulator mode.
The on-chip breakpoint resources include a total of 13 programmable registers—two sets
of address registers (each with two 32-bit registers), two sets of data registers (each with a
32-bit data register plus a 32-bit data mask register), one 32-bit PC register plus a 32-bit PC
mask register and three additional 32-bit PC registers. These registers can be accessed
through the dedicated debug serial communication channel or from the processor’s
supervisor mode programming model. The breakpoint registers can be configured to
generate triggers by combining the address, data, and PC conditions in a variety of single
or dual-level definitions. The trigger event can be programmed to generate a processor halt
or initiate a debug interrupt exception.
The MCF5407’s new interrupt servicing options during emulator mode allow real-time
critical interrupt service routines to be serviced while processing a debug interrupt event,
thereby ensuring that the system continues to operate even during debugging.
MCF5407 User’s Manual
1-12
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