Broadcom BCM91125E, Руководство пользователя

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User Manual BCM91125E
04/27/05
B ro a d c o m C o r p o r a t i o n
Document 91125E-UM100-R Troubleshooting Page 13
S e c t i o n 5 : Tro u bl e s h o o t i n g
C
ORRECTIVE
P
ROCEDURES
1 When CFE is not able to initialize the system and reach the console prompt, the four-character alphanumeric
LED display may be used to help debug the initialization sequence. When the Cer2 message appears, a cache
error has occurred. This frequently occurs when the BCM1125H is either undercooled or is in a low-voltage
situation. Ensure that the correct voltage and cooling is being provided. For other LED message descriptions,
refer to the
Common Firmware Environment (CFE) Specification document.
2 There is no output coming from the serial boot console, but the four-character LED displays CFE. Because
CFE uses serial port 0 by default, ensure that a standard 9-pin RS232 null-modem cable connection is being
used. Also ensure that the terminal program is set to a baud rate of 115200, 8-bit, no parity, no flow control.
R
EPLACEMENT
P
ARTS
Table 10: Replacement Parts
Board
ID
Description Manufacturer Manufacturer ID Web Information
F1 BCM1125H 2.5V power
5A current limit
Littelfuse
® 154005 http://www.littelfuse.com
F2 BCM1125H 3.3V power
1A current limit
Littelfuse
® 154001 http://www.littelfuse.com
F3 EJTAG connector 0.5A
32V surface mounted
fuse.
Littelfuse
® 434.500 http://www.littelfuse.com
BT1 RTC battery. Panasonic BR1225/1HC www.panasonic.com