Rainbow Electronics AT75C220 - Manual (Page 44)

AT75C220
44
MAC Interrupt Enable Register
Register Name: ETH_IER
Access Type: Write-only
Reset Value: –
• DONE
Enable management done interrupt.
• RCOM
Enable receive complete interrupt.
• RBNA
Enable receive buffer not available interrupt.
• TOVR
Enable Ethernet transmit buffer overrun interrupt
• TUND
Enable transmit buffer underrun interrupt
• RTRY
Enable retry limit exceeded interrupt.
• TBRE
Enable transmit buffer register empty interrupt.
• TCOM
Enable transmit complete interrupt.
• LINK
Enable LINK interrupt. Optional.
• TIDLE
Enable transmit idle interrupt.
• ROVR
Enable RX overrun interrupt.
• HRESP
Enable HRESP not OK interrupt.
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
– – – – HRESP ROVR LINK TIDLE
7 6 5 4 3 2 1 0
TCOM TBRE RTRY TUND TOVR RBNA RCOM DONE