DCR1
dw32(DCR1, 0x1); /* Tx polling again */
dw32(DCR1, 0x1); /* Issue Tx polling */
dw32(DCR1, 0x1); /* Issue Tx polling */
dw32(DCR1, 0x1); /* Issue Tx polling */
dw32(DCR1, 0x1); /* Issue Tx polling */
uw32(DCR1, 0x1); // Tx polling again
uw32(DCR1, 0x1); /* Issue Tx polling */
uw32(DCR1, 0x1); /* Issue Tx polling */