Motorola MSC8101 ADS User Manual download pdf (Page 94)

MOTOROLA MSC8101ADS RevB User’s Manual B-93

B•1•7 P12 - Ethernet Port Connector

The Ethernet connector on the MSC8101ADS - P12, is a Twisted-Pair (10-Base-T) compatible

connector. It is implemented with a 90

, 8-pin, RJ45 connector, signals of which are described in

TABLE B1-8. "P17,P18 - T1/E1 Line Connectors Interconnect Signals" below

B•1•8 P15,P16 - SMB Connectors

These are RF Subminiature Coaxial Connectors.

B•1•9 P17,P18 - Double RJ45 T1/E1 Line Connectors

The T1/E1 connectors Twisted-Pair compatible connector. It is implemented with a 90

, 8-pin,

double RJ45 connector, signals of which are described in TABLE B1-8. "P17,P18 - T1/E1 Line

9 RST I/O,P.U. In fact, HRESETb. When asserted by an external H/W, generates

Hard-Reset sequence for the MSC8101. During that sequence,

asserted by the MSC8101 for 512 system clocks. Pulled Up on

the ADS using a 1KΩ resistor.

When driven by an external tool, MUST be driven with an Open

Drain gate. Failure to do so might result in permanent

damage to the MSC8101 and / or to ADS logic.

10 TMS I Test Mode Select. This signal qualified with TCK in a same

manner as TDI, changes the state of the JTAG machines. This

line is pulled up internally by the MSC8101.

11 VDD P Connect to 3.3V power supply bus. May be used for Command

Convertor power.

12 N.C. - Not Connected.

14 TRSTb I Test port Reset. When this signal is active (Low), it resets the

JTAG logic of both the MSC8101. This line is pull-down on the

ADS with a 2.2KΩ resistor, to provide constant reset of the JTAG

logic.

TABLE B1-7. P12 - Ethernet Port Interconnect Signals

No.

Signal Name Description

1 TPTX(GRAY) Twisted-Pair Transmit Data positive output from the MSC8101ADS.

2 TPTX~(BROWN) Twisted-Pair Transmit Data negative output from the MSC8101ADS.

3 TPRX(YELLOW) Twisted-Pair Receive Data positive input to the MSC8101ADS.

4 (RED,GREEN) Bob Smith terminated on the MSC8101ADS.

6 TPRX~(BLACK) Twisted-Pair Receive Data negative input to the MSC8101ADS.

7 (BLUE,ORANGE) Bob Smith terminated on the MSC8101ADS.

TABLE B1-6. P6 - JTAG/ONCE Connector - 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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