405EZ datasheet(13/54 Pages) AMCC

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PPC405EZ – PowerPC 405EZ Embedded Processor

Revision 1.27 - August 22, 2007

AMCC Proprietary

Preliminary Data Sheet

Chameleon Timer

The Chameleon Timer’s Timer Service Engine (TSE) controls the local Timer RAM configured as 120 32-bit words

and up to fifteen 24-bit timer channels, each with an Input Capture Register or an Output Compare Register. The

Chameleon Timer interfaces to the OPB.

Features include:

• Pulse Width Modulation (PWM) and space vector PWM functions with non-overlap times

– Programmable “deadband” intervals

– Pulse period measurement

– 48-bit input capture function

– 48-bit output compare function

– IEEE1588 time stamps

– Automatic up, down, and up-then-down counting with modulus

• Autonomous Timer Service Engine (TSE) manages timer channels

– CPU programs “registers” in Timer SRAM (120x32 bits)

• 15 timer channels + 1 timebase channel

• Pulse period measurements

• Configurable for seven 48-bit channels or 15 24-bit channels

• Up to two timebases available simultaneously

– Each time base has four optional sources: three internal (Timebase A, Timebase B, and IEEE1588) and

one external

• Speed/resolution: 166MHz counter, 2-clock (20ns) minimum period

• Latency: 0.49

μsec worst case (based on 133MHz system clock)

• External “Fault” pin to automatically disable timer channel outputs

• Low EMC switching noise

• Unused Timer I/O pins available for GPIO use

• 32-bit OPB slave interface

General Purpose I/O (GPIO) Controller

The GPIO controller enables multiplexing of module I/O pins with multiple functions within the chip. That is, a single

package pin can be assigned to multiple I/O functions. Which function the pin is assigned to is determined by

support multiple I/O groups.

Features include:

• Up to 54 GPIOs available

– GPIOs are multiplexed with alternate functions

– If not in use for dedicated functions, I/Os are available as GPIOs

• Direct control of all functions from registers programmed by means of OPB bus master accesses

• Time multiplexing of controller outputs to module outputs

• Programmable conversion of module outputs to open-drain outputs (enables sharing of active low outputs

externally)

• Time multiplexing of module inputs to controller inputs

405EZ Datasheet(PDF) 13 Page - Applied Micro Circuits Corporation

405EZ Datasheet(HTML) 13 Page - Applied Micro Circuits Corporation

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