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Typical connection diagram, An181, Cs8900 – Cirrus Logic AN181 User Manual

Page 3

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AN181

AN181REV1

3

Typical Connection Diagram

EECS

EEDATAOUT

EESK

SA[10:19]

MEMW

MEMR

IOW

IOR

REFRESH

SBHE

SD[8:15]

INTRQ0

INTRQ1

RXD-

RXD+

TXD-

TXD+

DO-

DO+

CI-

CI+

DI-

DI+

LANLED

LINKLED

EEDATAIN

AEN

RESET

INTRQ2

INTRQ3

DMARQ0

DMACK0

DMARQ1

DMACK1

DMARQ2

DMACK2

MEMCS16

IOCHRDY

68 pF

1

3

6

8

24.9

Ω, 1%

24.9

Ω, 1%

92

91

88

87

100

Ω, 1%

RJ45

16

14

11

9

6

3

2

1

84

82

81

79

83

80

680

680

XTAL1 XTAL2

SLEEP

TEST

RES

3

5

4

6

28

62

61

29

7

8

10

97

98

93

4.99 k

, 1%

20 MHz

Vcc

4.7 k

CS8900

CHIPSEL

IOCS16

49

63

75

36

34

64

33

32

30

35

31

15

13

14

16

11

12

99

100

ELCS

10 BASE T

Isolation

Transformer

BSTATUS/HCI

Vcc

77

76

78

2

0.1 µF

7

0.1 µF

Vcc

SA[0:9]

10

SA[0:9]

IOW

IOR

SD[0:7]

8

CHIPSEL

RESET

SD[0:7]

A