AM79C940JC/W AMD [Advanced Micro Devices], AM79C940JC/W Datasheet - Page 77
AM79C940JC/W
Manufacturer Part Number
AM79C940JC/W
Description
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C940JCW.pdf
(144 pages)
- Current page: 77 of 144
- Download datasheet (2Mb)
Addr Mnemonic
10
11
8
9
BIUCC
IMR
PR
IR
Interrupt Register
80
40
20
10
08
04
02
01
Interrupt Mask Register
80
40
20
10
08
04
02
01
Poll Register
80
40
20
Bus Interface Unit Configuration Control
80
40
30
01
XMTSV
TDTREQ
RDTREQ
–
BSWP
XMTSP–Transmit Start Point (2 bits)
SWRST
JABM
BABLM
CERRM
RCVCCOM
RNTPCOM
MPCOM
RCVINTM
XMTINTM
00
01
10
11
JAB
BABL
CERR
RCVCCO
RNTPCO
MPCO
RCVINT
XMTINT
Transmit after 112 bytes have been loaded
Missed Packet Count Overflow Mask
Software Reset
Babble Error
Collision Error–No SQE Test Message
Runt Packet Count Overflow–Reg Addr 26 overflow
Babble Error Mask
Collision Error Mask
Runt Packet Count Overflow Mask
Receive Data Transfer Request
Transmit after 4 bytes have been loaded
Transmit after 16 bytes have been loaded
Transmit after 64 bytes have been loaded
Receive Interrupt–Host has read last byte of packet
Transmit Interrupt–Transmission is complete
Receive Interrupt Mask
Transmit Interrupt Mask
Transmit Status Valid
Jabber Error–Excessive transmit during (20–150ms)
Receive Collision Count Overflow–Red Add 27 overflow
Jabber Error Mask
Receive Collision Count Overflow Mask
Byte Swap
Missed Packet Count Overflow–Reg Addr 24 overflow
Transmit Data Transfer Request
Contents
1518 bytes transmitted
R/W
R/W
R/W
RO
RO
77
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