AT&T 3B2 Off-Line Diagnostic Manual page 356

Phase Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Test Numbers:
Function:
Procedure:
12 through 14
These tests verify that the receive activities of the INTEL 82586 Ethernet
Controller can be initiated.
Tests 12 through 14 execute as follows:
1. The SCB command line is checked for any pending commands
(Test 12).
2. The SCB RUC command is composed which enables the INTEL 82586
Ethernet Controller for frame reception.
3. The CA is sent.
4. The SCB command line is checked for SCB RUC command completion
(Test 13).
5. The SCB RUS Ready bit is verified to have been set (Test 14). The
RUS Ready bit indicates that the INTEL 82586 Ethernet Controller is
ready for frame reception.
Hardware Tested: The INTEL 82586 Ethernet Controller is tested.
Data Returned: The test number that failed, the actual data, and the expected data are returned.
Test Numbers:
Function:
Procedure:
15 through 24
These tests verify that the INTEL 82586 Ethernet Controller transmits a packet.
Tests 15 through 24 execute as follows:
1. The transmit command area is initialized in NI RAM.
2. The Transmit Buffer Descriptor (TBD) is initialized in NI RAM.
3. The Transmit buffer is filled with data in the NI RAM.
4. The SCB command line is checked for any pending commands
(Test 15).
5. The transmit command is composed.
6. The CA is sent.
7. The packet is transmitted.
8. The SCB command line is checked for transmit command completion
(Test 16).
9. The SCB status line is checked for any errors in the transmit command
execution (Test 17).
10. The SCB status line is checked for frame reception (Test 18).
11. The transmit command block is checked for any transmission errors
(Test 19).
12. The Receive Frame Descriptor (RFD) status is checked for any errors in
frame reception (Test 20).
13. The" C" bit is checked in the RFD for the end of frame reception
(Test 21).
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