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MPC555 Product Brief

Key Features

1.2.7

Two Time Processor Units (TPU3)

•

Each TPU3 module provides these features:

— A dedicated micro-engine operates independently of the RCPU

— 16 independent programmable channels and pins

— Each channel has an event register consisting of a 16-bit capture register, a 16-bit compare

register and a 16-bit comparator

— Nine pre-programmed timer functions are available

— Any channel can perform any time function

— Each timer function can be assigned to more than one channel

— Two timer count registers with programmable prescalers

— Each channel can be synchronized to one or both counters

— Selectable channel priority levels

— 5-V tolerant inputs/outputs

•

6-Kbyte dual port TPU RAM (DPTRAM) is shared by the two TPU3 modules for TPU microcode

1.2.8

18-Channel Modular I/O System (MIOS1)

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Ten double action submodules (DASM)

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Eight dedicated PWM sub-modules (PWMSM)

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Two 16-bit modulus counter submodules (MCSM)

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Two parallel port I/O submodules (PIOSM)

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5-V tolerant inputs/outputs

1.2.9

Two Queued Analog-to-Digital Converter Modules

(QADC64)

Each QADC provides:

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Up to 16 analog input channels, using internal multiplexing

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Up to 41 total input channels, using internal and external multiplexing

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10-bit A/D converter with internal sample/hold

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Typical conversion time of 10 µs (100,000 samples per second)

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Two conversion command queues of variable length

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Automated queue modes initiated by:

— External edge trigger/level gate

— Software command

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64 result registers

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Output data that is right- or left-justified, signed or unsigned

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5-V reference and range

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com