Motorola MSC8101 ADS User Manual download pdf (Page 81)

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 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.

C12 IRQ7b 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.

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.

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 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.

C31 IRQ5b 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.

TABLE B1-2. P1 - System 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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1 ... 80 81 82 ... 119

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