Motorola MPC8260 User Manual

15-2

MOTOROLA

The NMSI mode supports the following:

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Each FCC, SCC, and SMC can be programmed independently to work with a serial 
deviceÕs own set of pins in a non-multiplexed manner.

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Each FCC can be connected to its own MII (media-independent interface).

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FCC1 can also be connected to an 8- or 16-bit ATM UTOPIA level-2 interface.

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FCC2 can also be connected also to an 8-bit ATM UTOPIA level-2 interface.

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Each SCC can have its own set of modem control pins.

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Each SMC can have its own set of four pins.

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Each FCC, SCC, and SMC can be driven from a bank of twenty clock pins or a bank 
of eight BRGs.

Time-Slot Assigner

SIx

R clocks

T clocks

R sync

T sync

TDM Ax, Bx, Cx, Dx

Pins

Strobes

Register Bus

TDM Ax, Bx, Cx, Dx

Tx

TX

SMC1

Nonmultiplexed Serial Interface (NMSI) Pins

Rx

Rx

Clocks

CPM Mux

BRGs

To Serials:

UTOPIA
Address
Register

(CMXUAR)

SMC

Clock

Register

(CMXSMR)

SCC

Clock

Register

(CMXSCR)

FCC

Clock

Register

(CMXFCR)

SIx

Clock

Registers

(CMXSIxCR)

SMC1

MCCs

MUX

MII3

FCC3

MUX

MII2/

FCC2

MUX

MII1/

FCC1

MUX

SCC4

SCC4

MUX

SCC3

SCC3

MUX

SCC2

SCC2

MUX

SCC1

SCC1

MUX

SMC2

SMC2

MUX

UTOPIA

8/16

UTOPIA

8

MUX