Motorola MSC8101 ADS User Manual page 81

TABLE B1-2. P1 - System Expansion - Interconnect Signals
Pin No. Signal Name
C11 IRQ6b
C12 IRQ7b
C13 GND
C14 EXPD0
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
C31 IRQ5b
B-80
Freescale Semiconductor, Inc.
Attribute
I,P.U. Interrupt Request 6 . Connected to MSC8101's DP6//IRQ6b/
DACK3 signal. Pulled up on the ADS with a 10 KΩ 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.
I.P.U. Interrupt Request 7 . Connected to MSC8101's DP7/IRQ7b/
DACK4 signal. Pulled up on the ADS with a 10 KΩ 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.
P Digital Ground. Connected to main GND plane of the ADS.
I/O, T.S. Expansion Data (0
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.
I.P.U. Interrupt Request 4. Connected to MSC8101's DP4/IRQ4b/
DREQ3 signal. Pulled up on the ADS with a 10 KΩ 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.
I.P.U. Interrupt Request 5. Connected to MSC8101's DP5/IRQ5b/
DREQ5 signal. Pulled up on the ADS with a 10 KΩ 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.
MSC8101ADS RevB User's Manual
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Description
a
:15). This is a double buffered version of the
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