56F8322 datasheet(26/136 Pages) FREESCALE

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56F8322 Techncial Data, Rev. 16

Freescale Semiconductor

Preliminary

VREFP

Input/

Output

Analog Input/

Output

VREFP, VREFMID & VREFN — Internal pins for voltage reference which

are brought off-chip so that they can be bypassed. Connect to a 0.1

μF

ceramic low ESR capacitor.

VREFMID

VREFN

CAN_RX

(GPIOC2)

Schmitt

Input

Schmitt

Input/

Output

Input,

pull-up

enabled

FlexCAN Receive Data — This is the CAN input. This pin has an

internal pull-up resistor.

Port C GPIO — This GPIO pin can be individually programmed as an

input or output pin.

In the 56F8322, the default state after reset is CAN_RX.

In the 56F8122, the default state is not one of the functions offered

and must be reconfigured.

CAN_TX

(GPIOC3)

Open

Drain

Output

Schmitt

Input/

Output

Open

Drain

Output

FlexCAN Transmit Data — CAN output with internal pull-up enable

at reset.*

* Note: If a pin is configured as open drain output mode, internal

pull-up will automatically be disabled when it outputs low. Internal

pull-up will be enabled unless it has been manually disabled by

clearing the corresponding bit in the PUREN register of the GPIO

module, when it outputs high.

If a pin is configured as push-pull output mode, internal pull-up will

automatically be disabled, whether it outputs low or high.

Port C GPIO — This GPIO pin can be individually programmed as an

input or output pin.

In the 56F8322, the default state after reset is CAN_TX.

In the 56F8122, the default state is not one of the functions offered

and must be reconfigured.

TC0

(TXD0)

(GPIOC6)

1Schmitt

Input/

Output

Schmitt

Input

Schmitt

Input/

Output

Input,

pull-up

enabled

TC0 — Timer C, Channel 0

Transmit Data — SCI0 transmit data output

Port C GPIO — This GPIO pin can be individually programmed as an

input or output pin.

After reset, the default state is TC0.

Table 2-2 Signal and Package Information for the 48-Pin LQFP (Continued)

Signal Name

Pin No.

Type

State During

Reset

Signal Description

56F8322 Datasheet(PDF) 26 Page - Freescale Semiconductor, Inc

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