Sun Microsystems Netra CT 410, Service Manual

Page: 81 / 296

Chapter 4 Troubleshooting the System 4-31
4.7.9.1 PCI/PCIO
The PCI/PCIO diagnostic performs the following:
■
vendor_ID_test
: Verifies that the PCIO ASIC vendor ID is 108e.
■
device_ID_test
: Verifies that the PCIO ASIC device ID is 1000.
■ mixmode_read
: Verifies that the PCI configuration space is accessible as half-
word bytes by reading the EBus2 vendor ID address.
■
2_class_test
: Verifies the address class code. Address class codes include
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 walk1 test on status register with mask 0 x 280
(PCIO ASIC is accepting fast back-to-back transactions, DEVSEL timing is 0 x 1).
■ line_size_walk1
: Performs tests “a” through “e.”
■ latency_walk1
: Performs walk1 test on latency timer.
■
line_walk1
: Performs walk1 test on interrupt line.
■
pin_test
: Verifies that the interrupt pin is logic-level high (1) after reset.
CODE EXAMPLE 4-7
shows the PCI/PCIO output message.
CODE EXAMPLE 4-7
PCI/PCIO Output Message
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) ===>