MSC8103SLASHD datasheet(36/104 Pages) FREESCALE

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MSC8103 Network Digital Signal Processor, Rev. 11

1-32

Freescale Semiconductor

Signals/Connections

PC5

SMC1: SMTXD

SI2: L1ST3

FCC2: CTS

HDLC serial, HDLC nibble,

and

transparent

Output

Input

SMC1: Transmit Data

The SMC interface consists of SMTXD, SMRXD, SMSYN, and a clock. Not

all signals are used for all applications. SMCs are full-duplex ports that

supports three protocols or modes: UART, transparent, or general-circuit

interface (GCI).

Serial Interface 2: Layer 1 Strobe 3

The MSC8103 time-slot assigner supports up to four strobe outputs that

can be asserted on a bit or byte basis. The strobe outputs are useful for

interfacing to other devices that do not support the multiplexed interface or

for enabling/disabling three-state I/O buffers in a multiple-transmitter

architecture. These strobes can also generate output wave forms for such

applications as stepper-motor control.

FCC2: Clear To Send

In the standard modem interface signals supported by FCC2 (RTS, CTS,

and CD). CTS is asynchronous with the data.

PC4

SMC1: SMRXD

SI2: L1ST4

FCC2: CD

HDLC serial, HDLC nibble,

and

transparent

Input

Output

Input

SMC1: Receive Data

The SMC interface consists of SMTXD, SMRXD, SMSYN, and a clock. Not

all signals are used for all applications. SMCs are full-duplex ports that

supports three protocols or modes: UART, transparent, or general-circuit

interface (GCI).

Serial Interface 2: Layer 1 Strobe 4

The MSC8103 time-slot assigner supports up to four strobe outputs that

can be asserted on a bit or byte basis. The strobe outputs are useful for

interfacing to other devices that do not support the multiplexed interface or

for enabling/disabling three-state I/O buffers in a multiple-transmitter

architecture. These strobes can also generate output wave forms for such

applications as stepper-motor control.

FCC2: Carrier Detect

In the standard modem interface signals supported by FCC2 (RTS, CTS

and CD). CD is asynchronous with the data.

Table 1-9.

Port C Signals (Continued)

Name

Dedicated

I/O Data

Direction

Description

General-

Purpose I/O

Peripheral Controller:

Dedicated I/O

Protocol

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