Rainbow Electronics AT75C220 - Manual (Page 46)

AT75C220
46
MAC Interrupt Mask Register
Register Name: ETH_IMR
Access Type: Read-only
Reset Value: 0xFFFF
• DONE
Management done interrupt masked.
• RCOM
Receive complete interrupt masked.
• RBNA
Receive buffer not available interrupt masked.
• TOVR
Ethernet Transmit buffer overrun interrupt masked
• TUND
Transmit buffer underrun interrupt masked
• RTRY
Retry limit exceeded interrupt masked.
• TBRE
Transmit buffer register empty interrupt masked.
• TCOM
Transmit complete interrupt masked.
• LINK
LINK interrupt masked.
• TIDLE
Transmit idle interrupt masked.
• ROVR
Receive overrun interrupt masked.
• HRESP
HRESP not OK interrupt masked.
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