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
o
, 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
o
, 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 1K
Ω
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.
13
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 2.2K
Ω
resistor, to provide constant reset of the JTAG
logic.
TABLE B1-7. P12 - Ethernet Port Interconnect Signals
Pin
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.
5
6
TPRX~(BLACK)
Twisted-Pair Receive Data negative
input
to the MSC8101ADS.
7
(BLUE,ORANGE)
Bob Smith terminated on the MSC8101ADS.
8
TABLE B1-6. P6 - JTAG/ONCE Connector - Interconnect Signals
Pin No.
Signal Name
Attribute
Description
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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