AT&T 3B2 Off-Line Diagnostic Manual page 659

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Phase Descriptions
4. Check the SCB command line for SCB RUC command completion
(Test 10).
5. Check if the SCB RUS Ready bit has been set (Test 11). The RUS
Ready bit indicates that the INTEL 82586 LAN Coprocessor is ready for
frame reception.
Hardware Tested: The INTEL 82586 LAN Coprocessor is tested.
Data Returned: The failed test number, the actual value, and the expected value are returned.
Test Numbers:
Function:
Procedure:
12 through 21
These tests verify that the INTEL 82586 LAN Coprocessor transmits a packet.
Tests 12 through 21 execute as follows:
1. Initialize the transmit command area in Network Access Unit RAM.
2. Initialize the Transmit Buffer Descriptor (TBD) in Network Access Unit
RAM.
3. Fill the Transmit buffer in Network Access Unit RAM with data.
4. Check the SCB command line for any pending commands (Test 12).
5. Compose the transmit command.
6. Send the CA.
7. Transmit the packet.
8. Check the SCB command line for transmit command completion
(Test 13).
9. Check the SCB status line for any errors in the transmit command
execution (Test 14).
10. Check the SCB status line for frame reception (Test 15).
11. Check the transmit command block for any transmission errors
(Test 16).
12. Check the Receive Frame Descriptor (RFD) status for any errors in
frame reception (Test 17).
13. Check the "C" bit in the RFD for the end of frame reception (Test 18).
14. Check the Receive Buffer Descriptor (RBD) for the end of the frame
(Test 19).
15. Check the RBD for the use of the Receive buffer (Test 20).
16. Check the actual byte count of the packet received (Test 21).
17. Service the CA.
Hardware Tested: The INTEL 82586 LAN Coprocessor and STARLAN Network interface circuitry
are tested.
Data Returned: The failed test number, the actual value, and the expected value are returned.
STARLAN INTERFACE DIAGNOSTICS 15-47