Technical data

2.8.13 TURBOchannel Adapter Self-Test (T 13) (Model 60 Only)

Restriction

The system power-up self-test run time restricts the self-test’s ability to call

the emulator to run power-up self-tests on the option ﬁrmware.

To Initialize the TURBOchannel and Option

Arbitrary TURBOchannel resets are not performed. The following explains the

process to initialize the TURBOchannel and option:

If you halt VMS and want to run the emulator, but do not want to maintain

the state of the TURBOchannel or the option, enter the UNJAM command

at the console prompt. This initializes both the TURBOchannel and the

option.

Table 2–15 lists the tests that are included in the power-up TURBOchannel

Adapter (TCA) self-test. The power-up self-test is automatically invoked during

the initial power-up of the VAXstation 4000 hardware and it tests the TCA in a

sequential manner.

Table 2–15 TURBOchannel Adapter Self-Test (13)

Self-Test Function

TCA register

test

Tests the following functions of the CSR:

• RESET (toggles and checks bit in CSR)

• TURBOchannel timeout (reads the TURBOchannel while

holding RESET)

• FIFO (empties bit set and clears by writing and reading FIFO)

• INV (does an invalid map DMA)

TCA interrupt

test

Generates an interrupt.

Tests to see if the Interrupt Service Routine (ISR) can be reached

and then turns off interrupts and ensures that the ISR is not

reached.

(continued on next page)

2–22 Diagnostic Testing