56F8335 datasheet(23/160 Pages) FREESCALE

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Signal Pins

56F8335 Technical Data, Rev. 1

Freescale Semiconductor

Preliminary

PHASEA0

(TA0)

(GPIOC4)

127

Schmitt

Input

Schmitt

Input/

Output

Schmitt

Input/

Output

Input

Phase A — Quadrature Decoder 0, PHASEA input

TA0 — Timer A, Channel 0

Port C GPIO — This GPIO pin can be individually programmed

as an input or output pin.

After reset, the default state is PHASEA0.

To deactivate the internal pull-up resistor, clear bit 4 of the

GPIOC_PUR register.

PHASEB0

(TA1)

(GPIOC5)

128

Schmitt

Input

Schmitt

Input/

Output

Schmitt

Input/

Output

Input

Phase B — Quadrature Decoder 0, PHASEB input

TA1 — Timer A, Channel 1

Port C GPIO — This GPIO pin can be individually programmed

as an input or output pin.

After reset, the default state is PHASEB0.

To deactivate the internal pull-up resistor, clear bit 5 of the

GPIOC_PUR register.

INDEX0

(TA2)

(GPIOC6)

1Schmitt

Input

Schmitt

Input/

Output

Schmitt

Input/

Output

Input

Index — Quadrature Decoder 0, INDEX input

TA2 — Timer A, Channel 2

Port C GPIO — This GPIO pin can be individually programmed

as an input or output pin.

After reset, the default state is INDEX0.

To deactivate the internal pull-up resistor, clear bit 6 of the

GPIOC_PUR register.

Table 2-2 Signal and Package Information for the 128-Pin LQFP

Signal

Name

Pin No.

Type

State

During

Reset

Signal Description

56F8335 Datasheet(PDF) 23 Page - Freescale Semiconductor, Inc

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