Sun Microsystems Netra CT Service Manual page 75

Some of the individual items on the OBDiag menu are described in further detail in
the following paragraphs.
4.7.8.1 PCI/PCIO
The PCI/PCIO diagnostic performs the following:
vendor_ID_test: Verifies that the PCIO ASIC vendor ID is 108e.
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device_ID_test: Verifies that the PCIO ASIC device ID is 1000.
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mixmode_read: Verifies that the PCI configuration space is accessible as half-
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word bytes by reading the EBus2 vendor ID address.
2_class_test: Verifies the address class code. Address class codes include
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bridge device (0 x B, 0 x 6), other bridge device (0 x A and 0 x 80), and
programmable interface (0 x 9 and 0 x 0).
status_reg_walk1: Performs walk-one test on status register with mask 0 x 280
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(PCIO ASIC is accepting fast back-to-back transactions, DEVSEL timing is 0 x 1).
line_size_walk1: Performs tests a through e.
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latency_walk1: Performs walk one test on latency timer.
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line_walk1: Performs walk one test on interrupt line.
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pin_test: Verifies that the interrupt pin is logic-level high (1) after reset.
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CODE EXAMPLE 4-7
CODE EXAMPLE 4-7
Enter (0-14 tests, 15 -Quit, 16 -Menu) ===> 0
TEST= all_pci/PCIO_test
SUBTEST= vendor_id_test
SUBTEST= device_id_test
SUBTEST= mixmode_read
SUBTEST= e2_class_test
SUBTEST= status_reg_walk1
SUBTEST= line_size_walk1
SUBTEST= latency_walk1
SUBTEST= line_walk1
SUBTEST= pin_test
Enter (0-14 tests, 15 -Quit, 16 -Menu) ===>
4.7.8.2 EBus DMA/TCR Registers
The EBUS DMA/TCR registers diagnostic performs the following:
identifies the PCI/PCIO output message.
PCI/PCIO Output Message
Chapter 4 Troubleshooting the System 4-29