Freescale Semiconductor, Inc.

Freescale Semiconductor, Inc.

TABLE B1-3. P2 - CPM Expansion - Interconnect Signals

 

Pin No.

Signal Name

Attribute

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C15

HD0

I/O, T.S.

Host Interface Bidirectional Data Port D0-D13. Present as well as

 

 

 

 

 

at P4 connector.

 

 

C16

HD1

 

 

 

 

 

 

 

 

 

 

 

 

 

C17

HD2

 

 

 

 

 

 

 

 

 

 

C18

HD3

 

 

 

 

 

 

 

 

 

 

C19

HD4

 

 

 

 

 

 

 

 

 

 

C20

HD5

 

 

 

 

 

 

 

 

 

 

C21

HD6

 

 

 

 

 

 

 

 

 

 

C22

HD7

 

 

 

 

 

 

 

 

 

 

C23

HD8

 

 

 

 

 

 

 

 

 

 

C24

HD9

 

 

 

 

 

 

 

 

 

 

C25

HD10

 

 

 

 

 

 

 

 

 

 

C26

HD11

 

 

 

 

 

 

 

 

 

 

C27

HD12

 

 

 

 

 

 

 

 

 

 

C28

HD13

 

 

 

 

 

 

 

 

 

 

C29

ATMRCLK

O, T.S.

ATM Receive Clock. A divide by 8 of the ATM line clock recovered

 

 

 

 

 

by the ATM receive logic. Enabled only when pin A29 of this

 

 

 

 

 

connector is either not connected or driven low. Otherwise, Tri-

 

 

 

 

 

stated.

 

 

 

 

 

 

 

 

C30

GND

P

Digital Ground. Connected to main GND plane of the ADS.

 

 

 

 

 

 

 

 

C31

 

 

 

 

 

 

 

 

 

 

 

C32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D1

CLK1(PC31)

I/O, T.S.

Clock 1 input. When TDMA is enabled this pin is an input clock.

 

 

 

 

 

When TDMA port is disabled this line may be used for any

 

 

 

 

 

available function of PC31 Port C.

 

 

 

 

 

 

 

 

D2

PC30

I/O, T.S.

MSC8101’s Port C30 Parallel I/O line. May be used to any of its

 

 

 

 

 

available functions.

 

 

 

 

 

 

 

 

D3

FETHRXCK (PC29)

I/O, T.S.

Fast-Ethernet Receive Clock. When the Ethernet port is enabled,

 

 

 

 

 

this clock (25 MHz for 100 Mbps, 2.5 MHz for 10 Mbps) is

 

 

 

 

 

extracted from the received data and driven to the MSC8101 to

 

 

 

 

 

qualify incoming receive data.

 

 

 

 

 

When the Ethernet port is disabled, this line is tristated and may

 

 

 

 

 

be used for any available function of PC29.

 

 

 

 

 

 

 

 

D4

FETHTXCK (PC28)

I/O, T.S.

Fast-Ethernet Transmit Clock. When the Ethernet port is enabled,

 

 

 

 

 

this clock (25 MHz for 100 Mbps, 2.5 MHz for 10 Mbps) is

 

 

 

 

 

normally extracted from the received data and driven to the

 

 

 

 

 

MSC8101 to qualify out coming transmit data. In Slave mode (not

 

 

 

 

 

used with this application) this clock should be input to the

 

 

 

 

 

LXT970.

 

 

 

 

 

When the Ethernet port is disabled, this line is tristated and may

 

 

 

 

 

be used for any available function of PC28.

 

 

 

 

 

 

 

 

 

 

 

 

 

MOTOROLA

MSC8101ADS RevB User’s Manual

B-87

For More Information On This Product,

Go to: www.freescale.com

Page 88
Image 88
Nortel Networks MSC8101 ADS HD0, HD1, HD2, HD3, HD4, HD5, HD6, HD7, HD8, HD9, Atmrclk, Fethrxck PC29, Fethtxck PC28