dp83932c-20 National Semiconductor Corporation, dp83932c-20 Datasheet - Page 36

• Manufacturer Part Number: dp83932c-20
• Description: Mhz Sonictm Systems-oriented Network Interface Controller
• Manufacturer: National Semiconductor Corporation

4 0 SONIC Registers
4 3 5 Interrupt Mask Register (Continued)
Bit
7
6
5
4
3
2
1
0
TCEN GENERAL PURPOSE TIMER COMPLETE enable
0 disable
1 enables interrupts when the general purpose timer has rolled over from 0000 0000h to FFFF FFFFh
RDEEN RECEIVE DESCRIPTORS EXHAUSTED enable
0 disable
1 enables interrupts when all receive descriptors in the RDA have been exhausted
RBEEN RECEIVE BUFFERS EXHAUSTED enable
0 disable
1 enables interrupts when all resource descriptors in the RRA have been exhausted
RBAEEN RECEIVE BUFFER AREA EXCEEDED enable
0 disable
1 enables interrupts when the SONIC attempts to buffer data beyond the end of the Receive Buffer Area
CRCEN CRC TALLY COUNTER WARNING enable
0 disable
1 enables interrupts when the CRC tally counter has rolled over from FFFFh to 0000h
FAEEN FRAME ALIGNMENT ERROR (FAE) TALLY COUNTER WARNING enable
0 disable
1 enables interrupts when the FAE tally counter rolled over from FFFFh to 0000h
MPEN MISSED PACKET (MP) TALLY COUNTER WARNING enable
0 disable
1 enables interrupts when the MP tally counter has rolled over from FFFFh to 0000h
RFOEN RECEIVE FIFO OVERRUN enable
0 disable
1 enables interrupts when the receive FIFO has overrun
(Continued)
36
Description