am79c940 Advanced Micro Devices, am79c940 Datasheet - Page 100

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

AC WAVEFORMS
100
AMD
(EDSEL = 0)
(EDSEL = 1)
DBUS[15:0]
CS or FDS
ADD[4:0]
TC = 0
SCLK
SCLK
BE0-1
R/W
EOF
DTV
Host System Interface—3-Cycle Receive FIFO/Register Read Timing
TL
TL
33
TH
TH
31
35
50
S0
S0
S1
S1
37
W0 W1
W0 W1
Word N
36
S2
S2
S3
S3
Am79C940
51
S0
S0
S1
S1
W0
W0
Word N+1
W1 S2
W1 S2
32
34
S3
S3
39
S0
S0
S1
S1
W0 W1
W0 W1
Last Byte
or Word
34
38
40
S2
S2
41
S3
S3
16235C-26
S0
S0