56F8156 Ver la hoja de datos (PDF) - Freescale Semiconductor

Número de pieza

componentes Descripción

Fabricante

56F8156

16-bit Digital Signal Controllers

Freescale Semiconductor 

2.2 Signal Pins

After reset, each pin is configured for its primary function (listed first). Any alternate functionality must

be programmed.

If the “State During Reset” lists more than one state for a pin, the first state is the actual reset state. Other

states show the reset condition of the alternate function, which you get if the alternate pin function is

selected without changing the configuration of the alternate peripheral. For example, the A8/GPIOA0 pin

shows that it is tri-stated during reset. If the GPIOA_PER is changed to select the GPIO function of the

pin, it will become an input if no other registers are changed.

Table 2-2 Signal and Package Information for the 144-Pin LQFP

Signal Name Pin No. Type

State

During

Reset

Signal Description

VDD_IO

1

VDD_IO

16

VDD_IO

31

VDD_IO

38

VDD_IO

66

VDD_IO

84

VDD_IO

119

VDDA_ADC

102

VDDA_OSC_PLL

80

Supply

Supply

Supply

VSS

VSS

VSS

VSS

VSS

VSSA_ADC

27

Supply

37

63

69

144

103

Supply

I/O Power — This pin supplies 3.3V power to the chip I/O interface

and also the Processor core throught the on-chip voltage

regulator, if it is enabled.

ADC Power — This pin supplies 3.3V power to the ADC modules.

It must be connected to a clean analog power supply.

Oscillator and PLL Power — This pin supplies 3.3V power to the

OSC and to the internal regulator that in turn supplies the Phase

Locked Loop. It must be connected to a clean analog power

supply.

VSS — These pins provide ground for chip logic and I/O drivers.

ADC Analog Ground — This pin supplies an analog ground to the

ADC modules.

56F8356 Technical Data, Rev. 13

18

Freescale Semiconductor

Preliminary

Share Link: