Nortel Networks MSC8101 ADS User Manual
B-80
MSC8101ADS RevB User’s Manual
MOTOROLA
C11
IRQ6b
I,P.U.
Interrupt Request 6 . Connected to MSC8101‘s DP6//IRQ6b/
DACK3 signal. Pulled up on the ADS with a 10 K
DACK3 signal. Pulled up on the ADS with a 10 K
Ω resistor. This
line is shared with the ATM UNI’s interrupt line and therefore,
when driven by an external tool, MUST be driven with an Open
Drain gate. Failure to do so may result in permanent damage
to the MSC8101 or to ADS logic.
when driven by an external tool, MUST be driven with an Open
Drain gate. Failure to do so may result in permanent damage
to the MSC8101 or to ADS logic.
C12
IRQ7b
I.P.U.
Interrupt Request 7 . Connected to MSC8101‘s DP7/IRQ7b/
DACK4 signal. Pulled up on the ADS with a 10 K
DACK4 signal. Pulled up on the ADS with a 10 K
Ω resistor. This
line is shared with the Fast Ethernet transceiver’s interrupt line
and therefore, 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.
and therefore, 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.
C13
GND
P
Digital Ground. Connected to main GND plane of the ADS.
C14
EXPD0
I/O, T.S.
Expansion Data (0
:15). This is a double buffered version of the
PPC bus D(0:15) lines, controlled by on-board logic. These lines
will be driven only if BTOLCS1b or BTOLCS2b are asserted.
Otherwise they are tristated.
The direction of these lines is determined by buffered BCTL0, in
function of R~/W.
will be driven only if BTOLCS1b or BTOLCS2b are asserted.
Otherwise they are tristated.
The direction of these lines is determined by buffered BCTL0, in
function of R~/W.
C15
EXPD1
C16
EXPD2
C17
EXPD3
C18
EXPD4
C19
EXPD5
C20
EXPD6
C21
EXPD7
C22
EXPD8
C23
EXPD9
C24
EXPD10
C25
EXPD11
C26
EXPD12
C27
EXPD13
C28
EXPD14
C29
EXPD15
C30
IRQ4b
I.P.U.
Interrupt Request 4. Connected to MSC8101‘s DP4/IRQ4b/
DREQ3 signal. Pulled up on the ADS with a 10 K
DREQ3 signal. Pulled up on the ADS with a 10 K
Ω resistor. This
line is shared with the Fast Ethernet transceiver’s interrupt line
and therefore, 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.
and therefore, 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.
C31
IRQ5b
I.P.U.
Interrupt Request 5. Connected to MSC8101‘s DP5/IRQ5b/
DREQ5 signal. Pulled up on the ADS with a 10 K
DREQ5 signal. Pulled up on the ADS with a 10 K
Ω resistor. This
line is shared with the Fast Ethernet transceiver’s interrupt line
and therefore, 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.
and therefore, 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.
TABLE B1-2. P1 - System Expansion - 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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