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AM79C940KC/W bảng dữ liệu(PDF) 103 Page - Advanced Micro Devices

tên linh kiện AM79C940KC/W
Giải thích chi tiết về linh kiện  Media Access Controller for Ethernet (MACE??
PDF  144 Pages
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nhà sản xuất  AMD [Advanced Micro Devices]
Trang chủ  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C940KC/W bảng dữ liệu(HTML) 103 Page - Advanced Micro Devices

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103
34
Word N
Word N+1
Last Byte
or Word
41
32
42
31
S3
S2
S1
S0
TH
TL
S0
S2
S1
S3
S1
S0
W1
W0
W1
W0
S2
S3
S0
W1
W0
SCLK
(EDSEL = 1)
R/W
DTV
EOF
DBUS[15:0]
ADD[4:0]
BE0-1
TC = 0
33
48
49
37
34
43
38
S3
S2
S1
S0
TH
TL
S0
S2
S1
S3
S1
S0
W1
W0
W1
W0
S2
S3
S0
W1
W0
SCLK
(EDSEL = 0)
CS
AC WAVEFORMS
Host System Interface—3-Cycle Transmit FIFO/Register Write Timing
16235D-28
EOF
RDTREQ
39
44
SCLK
(EDSEL = 1)
S0
S2
S1
S3
S2
S1
S0
S2
S1
S3
S0
S0
S3
S2
45
Note 1
40
SCLK
(EDSEL = 0)
S0
S2
S1
S3
S2
S1
S0
S2
S1
S3
S0
S0
S3
S2
Note: Once the host detects the EOF output active from the MACE device (S2/S3 edge), if no other receive packet exists
in the RCVFIFO which meets the assert conditions for RDTREQ, the MACE device will deassert RDTREQ within 4 SCLK
cycles (S0/S1 edge). This is consistent for both 2 or 3 cycle read operations.
16235D-29
Host System Interface–RDTREQ Read Timing



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