3Com 3C319 manual Group 1 Diagnostics

Diagnostic Test Types 9-3

Group 1 Diagnostics

Group 1 diagnostics test physical components, connectors, and circuitry of the 3C319 NIC as follows.

MMIO Register Write/Read Test

This test verifies that the PC can access the 3C319 NIC’s memory mapped I/O registers correctly.

Boot PROM Test

This test verifies that the PC can access the boot PROM correctly and verifies the integrity of the boot PROM.

AIP Checksum Test

This test verifies that the 3C319 NIC’s node ID, channel identifier, and supported function identifiers such as data rate, shared RAM, and transmit buffer size are correct.

Shared RAM Boundary/Domain Test

This test verifies that the shared RAM base address is aligned on the proper address boundary according to the shared RAM page size setting and verifies that its domain does not conflict with that of the 3C319 NIC ROM.

Shared RAM Write/Read Test

This test verifies that the PC can correctly access the total 64 KB of available shared RAM.

Timer Test

This test verifies the 3C319 NIC’s timer operations by comparing the 3C319 NIC timing to the PC’s timing.

Open NIC for Ring Operation Test

This test prepares the 3C319 NIC for a NIC ring operation test and verifies the 3C319 NIC’s ability to transmit data over the network. This test requires you to connect to an STP or a UTP cable with a DAU, MAU, CAU, or token ring switch at the other end.