Ebus Dma/Tcr Registers - Sun Microsystems Ultra 5 Product Notes

EBus DMA/TCR Registers

The EBUS DMA/TCR registers diagnostic performs the following:
a. dma_reg_test – Performs a walking ones bit test for control status register,
b. dma_func-test – Validates the DMA capabilities and FIFOs. Test is executed
CODE EXAMPLE 4
CODE EXAMPLE 4
Enter (0-12 tests, 13 -Quit, 14 -Menu) ===> 1
TEST='all_dma/ebus_test'
SUBTEST='dma_reg_test'
SUBTEST='dma_func_test'
Enter (0-12 tests, 13 -Quit, 14 -Menu) ===>
Ethernet
The Ethernet diagnostic performs the following:
a. my_channel_reset – Resets the Ethernet channel.
b. hme_reg_test – Performs Walk1 on the following registers set: global register
c. MAC_internal_loopback_test – Performs Ethernet channel engine internal
d. 10_mb_xcvr_loopback_test – Enables the 10Base-T data present at the
16 Sun Ultra 5/10 Product Notes • April 1998
address register, and byte count register of each channel. Verifies that the
control status register is set properly.
in a DMA diagnostic loopback mode. Initializes the data of transmitting
memory with its address, performs a DMA read and write, and verifies that
the data received is correct. Repeats for four channels.
identifies the EBus DMA/TCR registers output message.
EBus DMA/TCR Registers Output Message
1, global register 2, bmac xif register, bmac tx register, and the mif register.
loopback.
transmit MII data inputs to be routed back to the receive MII data outputs.