Cirrus Logic Crystal LAN CS8900A Application Note page 4

A[3:1]
A[3:1]
D[15:0]
D[15:0]
VDD
R97
100K
nMWE
nMOE
nCS2
AN83REV3
R96
GND 4K99 1% VDD
93
RES
37
SA0
A1
38
SA1
A2
39
SA2
A3
40
SA3
41
SA4
42
SA5
43
SA6
44
SA7
VDD
45
SA8
46
SA9
47
SA10
48
SA11
GND
50
SA12
51
SA13
52
SA14
53
SA15
54
SA16
58
SA17
59
SA18
60
SA19
D0
65
SD0
D1
66
SD1
D2
67
SD2
D3
68
SD3
D4
71
SD4
D5
72
SD5
D6
73
SD6
D7
74
SD7
D8
27
SD8
D9
26
SD9
D10
25
SD10
D11
24
SD11
D12
21
SD12
D13
20
SD13
D14
19
SD14
D15
18
SD15
7
CHIPSEL
GND
28
MEMW
29
MEMR
nMWE
62
IOW
nMOE
61
IOR
49
REFRESH
nCS2
36
SBHE
63
AEN
CS8900_RST
75
RESET
77
SLEEP
76
TESTSEL
2
ELCS
97
XTLI
GND
98
XTLO
X3
U21
CS8900A
20MHz
GND
nURESET
VDD VDD VDD
C89 C91
100nF 100nF
GND GND GND
Figure 4. CS8900A Interface to Cirrus Logic CL-PS7211
VDD
3
EECS
4
EESK
5
EEDATAOUT
6
EEDATAIN
99
LED0/HC0
78
BSTATUS/HC1
100
LANLED
84
DO-
83
DO+
82
CI-
81
CI+
80
DI-
79
DI+
92
RXD-
91
RXD+
88
TXD-
87
TXD+
32
INTRQ0
31
INTRQ1
30
INTRQ2
35
INTRQ3
34
MEMCS16
33
IOCS16
64
IOCHRDY
15
DMARQ0
13
DMARQ1
11
DMARQ2
16
DMACK0
14
DMACK2
12
DMACK3
17
CSOUT
U30A
nURESET CS8900_RST
1 2
74LVX04
VDD VDD VDD VDD
C92 C94 C93 C90 C88
100nF 100nF 100nF 100nF 100nF
GND GND GND GND
D6 R89
LINK
LED 390R
2 1
VDD
2 1
VDD
D7 R90
LED ACTIVITY 390R
R93
100R
R94 C62
8R 560pF
R95
8R
EINT3
R91
VDD
4K7
RxD-
RxD+
TxD-
TxD+