DSP56307UM 데이터 시트보기 (PDF) - Motorola => Freescale

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DSP56307UM

24-BIT DIGITAL SIGNAL PROCESSOR

Motorola => Freescale 

Signals/Connections

Enhanced Synchronous Serial Interface 0

Table 1-11 Enhanced Synchronous Serial Interface 0

Signal Name

Type

SC00

Input or

Output

State During

Reset

Signal Description

Input

Serial Control 0ÑThe function of SC00 is

determined by the selection of either

synchronous or asynchronous mode. For

asynchronous mode, this signal will be used for

the receive clock I/O (Schmitt-trigger input).

For synchronous mode, this signal is used either

for transmitter 1 output or for serial I/O flag 0.

PC0

Port C 0ÑThe default configuration following

reset is GPIO input PC0. When configured as

PC0, signal direction is controlled through the

port directions register (PRR0). The signal can

be configured as ESSI signal SC00 through the

port control register (PCR0).

SC01

Input/

Output

Input

Note: This signal has a weak keeper to maintain the last

state even if all drivers are tri-stated.

Serial Control 1ÑThe function of this signal is

determined by the selection of either

synchronous or asynchronous mode. For

asynchronous mode, this signal is the receiver

frame sync I/O. For synchronous mode, this

signal is used either for transmitter 2 output or

for serial I/O flag 1.

PC1

Input or

Output

Port C 1ÑThe default configuration following

reset is GPIO input PC1. When configured as

PC1, signal direction is controlled through

PRR0. The signal can be configured as an ESSI

signal SC01 through PCR0.

Note: This signal has a weak keeper to maintain the last

state even if all drivers are tri-stated.

Not Recommended for New Design

1-20

DSP56307 Technical Data

MOTOROLA

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