56F8357 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

56F8357

16-bit Digital Signal Processor

Motorola => Freescale 

Freescale Semiconductor, Inc.

56F8357 Signal Pins

Table 2-2 56F8357 Signal and Package Information for the 160-Pin LQFP

Signal Name Pin No. Type

State

During

Reset

Signal Description

GPIOD0

(CS2)

GPIOD1

(CS3)

GPIOD2

(CS4)

GPIOD3

(CS5)

GPIOD4

(CS6)

GPIOD5

(CS7)

TXD0

(GPIOE0)

RXD0

(GPIOE1)

TXD1

(GPIOD6)

55

Input/

Output

Output

56

57

58

59

60

Input

Port D GPIO — These six GPIO pins can be individually

programmed as input or output pins.

Chip Select — CS2 - CS7 may be programmed within the

EMI module to act as chip selects for specific areas of the

external memory map.

Depending upon the state of the DRV bit in the EMI bus

control register (BCR), A0–A23 and EMI control signals are

tri-stated when the external bus is inactive.

At reset, these pins are configured as GPIO.

To deactivate the internal pull-up resistor, clear the

appropriate GPIO bit in the GPIOD_PUR register.

Example: GPIOD0, clear bit 0 in the GPIOD_PUR register.

4

Output Tri-stated Transmit Data — SCI0 transmit data output

Input/

Output

Input

Port E GPIO — This GPIO pin can be individually

programmed as an input or output pin.

After reset, the default state is SCI output.

To deactivate the internal pull-up resistor, clear bit 0 in the

GPIOE_PUR register.

5

Input

Input

Receive Data — SCI0 receive data input

Input/

Output

Input

Port E GPIO — This GPIO pin can be individually

programmed as an input or output pin.

After reset, the default state is SCI output.

To deactivate the internal pull-up resistor, clear bit 1 in the

GPIOE_PUR register.

49

Output Tri-stated Transmit Data — SCI1 transmit data output

Input/

Output

Input

Port D GPIO — This GPIO pin can be individually

programmed as an input or output pin.

After reset, the default state is SCI output.

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

GPIOD_PUR register.

56F8357 Technical Data

21

Preliminary

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