Motorola MSC8101 ADS User Manual download pdf (Page 88)

MOTOROLA MSC8101ADS RevB User’s Manual B-87

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.

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

Pin No. Signal Name Attribute Description

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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