DEC DECstation 5000 Model 100 Series, Maintenance Manual

Page: 245 / 269

Ethernet Station Address ROM Test
The ethernet station address ROM (ESAR) test checks the
ethernet station address ROM on the Ethernet controller. To
run the ESAR test, type t x21 and press Return.
ESAR test error codes
Table F-51 lists error codes used in ESAR test error messages.
Table F-51. ESAR Test Error Codes
Error Code Description
1 First read to ESAR failed.
2 ESAR contained all zeros.
3 ESAR contained broadcast address.
4 Error occurred computing checksum.
5 Checksum miscompare occurred in lower byte.
6 Checksum miscompare occurred in lower byte.
7 Reverse copy mismatch occurred.
8 Forward copy mismatch occurred.
9 Test pattern FF mismatch occurred.
10 Test pattern 00 mismatch occurred.
11 Test pattern 55 mismatch occurred.
12 Test pattern AA mismatch occurred.
13 Test pattern FF mismatch occurred.
14 Test pattern 00 mismatch occurred.
15 Test pattern 55 mismatch occurred.
16 Test pattern AA mismatch occurred.
Test Commands and Messages Produced by Version PDE3 ROM Chips F–39