Nortel Networks MSC8101 ADS user manual Jumpers, Software Options Switch SW11, 431 JP1 DLL Disable

Models: MSC8101 ADS

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Freescale Semiconductor, Inc.

Operating Instructions

FIGURE 4-5 Switch SW10 BOOT MODE - Description

BOOT

RESERVED BTM1

BTM0

DBG

ON

SW10

4

3

2

1

Inc.

Set to ‘0’ <=

=> Set to ’1’

4•2•10 Software Options Switch - SW11

SW11 is a 4-switch Dip-Switch with three poles in use. This switch is connected over SWOPT(0:2) lines which are available at BCSR2 via bus driver U16, S/W options may be manually selected, according to SW11 state. SW11 is factory set to all ON.

FIGURE 4-6 Switch SW11 S/W Option - Description

Freescale Semiconductor,

RESERVED

SWOPT2

SWOPT1

SWOPT0

SW11

ON

4

3

2

1

Set to ‘0’ <=

=> Set to ’1’

4•3 Jumpers

The MSC8101-ADS has the following jumpers:

4•3•1 JP1 - DLL Disable.

J1 set DLLDIS bit 27 in the HCW loaded from BCSR. When Jumper JP1 is open MSC8101 will be configured without DLL. If JP3 will closed the DLL is ON. Setting of JP3 is depended on jumper JP2 (see JP2 description). Default set is JP3-OPEN(DLL disable).

4•3•2 JP2 - Clock Buffer Set.

Jumper J2 allows to change mode of Zero-Delay Buffer JP2. When Jumper JP2 is open ZD buffer operates in normal mode and require DLL disable setting (JP1 is open). For U44 buffer mode (in- ternal PLL is disable) JP2 should be close. If JP2 is close MSC8101 will be configured without

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MSC8101ADS RevB User’s Manual

MOTOROLA

For More Information On This Product,

Go to: www.freescale.com

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Nortel Networks MSC8101 ADS Jumpers, Software Options Switch SW11, 431 JP1 DLL Disable, 432 JP2 Clock Buffer Set