am79c972b Advanced Micro Devices, am79c972b Datasheet - Page 35
am79c972b
Manufacturer Part Number
am79c972b
Description
Pcnet?-fast+ Enhanced 10/100 Mbps Pci Ethernet Controller With Onnow Support
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C972B.pdf
(130 pages)
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CLK
1
2
3
4
5
6
7
8
9
10
11
FRAME
ADDR
DATA
ADDR
DATA
AD
0000
0000
0110
C/BE
0110
PAR
PAR
PAR
PAR
PAR
IRDY
TRDY
DEVSEL
REQ
GNT
21485C-15
DEVSEL is sampled
Figure 12. Non-Burst Read Transfer
CLK
1
2
3
4
5
6
7
8
9
10
11
FRAME
AD
ADDR
DATA
DATA
DATA
1110
0000
C/BE
PAR
PAR
PAR
PAR
PAR
IRDY
TRDY
DEVSEL
REQ
GNT
21485C-16
DEVSEL is sampled
Figure 13. Burst Read Transfer (EXTREQ = 0, MEMCMD = 0)
Am79C972
35
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