ppc440epx Applied Micro Circuits Corporation (AMCC), ppc440epx Datasheet - Page 18

• Manufacturer Part Number: ppc440epx
• Description: Powerpc 440epx Embedded Processor
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

440EPx – PPC440EPx Embedded Processor
General Purpose IO (GPIO) Controller
Universal Interrupt Controller (UIC)
Two Universal Interrupt Controllers (UIC) are employed. They provide control, status, and communications
necessary between the external and internal sources of interrupts and the on-chip PowerPC processor.
Note:
Features include:
JTAG
Features include:
18
• Controller functions and GPIO registers are programmed and accessed via memory-mapped OPB bus master
• 64 GPIOs are multiplexed with other functions. DCRs control whether a particular pin that has GPIO
• Each GPIO output is separately programmable to emulate an open drain driver (that is, drives to zero,
• 10 external interrupts
• Edge triggered or level-sensitive
• Positive or negative active
• Non-critical or critical interrupt to the on-chip processor
• Programmable interrupt priority ordering
• Programmable critical interrupt vector for faster vector processing
• IEEE 1149.1 Test Access Port
• JTAG Boundary Scan Description Language (BSDL)
• Refer to http://www.amcc.com/Embedded/Partners for a list of AMCC partners supplying probes for use
accesses.
capabilities acts as a GPIO or is used for another purpose.
tri-stated if output bit is 1).
with this port.
Processor specific interrupts (for example, page faults) do not use UIC resources.
Preliminary Data Sheet
Revision 1.29 – July 22, 2008
AMCC Proprietary