am79c974 Advanced Micro Devices, am79c974 Datasheet - Page 14
am79c974
Manufacturer Part Number
am79c974
Description
Pcnettm-scsi Combination Ethernet And Scsi Controller For Pci Systems
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C974.pdf
(153 pages)
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PIN DESIGNATIONS
Listed by Pin Number
14
Pin No.
AMD
20
23
24
25
26
31
32
33
10
11
12
13
14
15
16
17
18
19
21
22
27
28
29
30
1
2
3
4
5
6
7
8
9
Pin Name
DEVSEL
IDSELA
IDSELB
FRAME
C/BE3
C/BE2
LOCK
PERR
SERR
TRDY
STOP
AD27
AD26
AD25
AD24
AD23
AD22
AD21
AD20
AD19
AD18
AD17
AD16
IRDY
VDDB
VSSB
VSSB
VDDB
VSSB
VDDB
VDD
VSS
VSS
Pin No.
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
Pin Name
SCSI^RST
SCSICLK
P R E L I M I N A R Y
PWDN
C/BE1
C/BE0
BUSY
AD15
AD14
AD13
AD12
AD11
AD10
PAR
VDDB
VSSB
VSSB
AD9
AD8
AD7
AD6
VSSB
AD5
AD4
AD3
AD2
VSSB
AD1
AD0
BSY
ATN
VDD
VSS
VSS
Am79C974
Pin No.
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
Pin Name
XTAL1
XTAL2
RXD–
RXD+
AVDD4
AVDD3
TXP–
TXD–
TXP+
TXD+
AVSS2
VSSBS
VSSBS
VDDBS
VSSBS
DVSS
DVDD
MSG
DVSS
REQ
SDP
ACK
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SEL
C/D
I/O
Pin No.
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
EEDI/LNKST
EEDO/LED3
EESK/LED1
RESERVE
Pin Name
SLEEP
REQB
REQA
EECS
GNTB
GNTA
AVSS1
AVDD1
AVDD2
AD31
AD30
AD29
AD28
DVDD
DVSS
INTA
INTB
DO–
DO+
RST
CLK
VSSB
DI–
DI+
CI–
CI+
VSS
VDD
VSS
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