am79c940 Advanced Micro Devices, am79c940 Datasheet - Page 101

• Manufacturer Part Number: am79c940
• Description: Media Access Controller For Ethernet Mace
• Manufacturer: Advanced Micro Devices

AC WAVEFORMS
(EDSEL = 0)
(EDSEL = 1)
DBUS15–0
CS or FDS
ADD4–0
TC = 1
BE0-1
SCLK
SCLK
EOF
R/W
DTV
Host System Interface—2-Cycle Transmit FIFO/Register Write Timing
TL
TL
33
TH
TH
31
37
S0
S0
Word N
48
S1
S1
49
S2
S2
S3
S3
S0
S0
Word N+1
Am79C940
S1
S1
34
S2
S2
S3
S3
32
Last Byte
or Word
S0
S0
42
S1
S1
43
34
S2
S2
41
S3
S3
16235C-27
S0
S0
AMD
38
101