Cirrus Logic CS4953xx User Manual

Page 109

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D

S

73
2U
M

1

0

C

op
yri
ght 201

0

C

irr

us Log

ic

,

In

c

9

-2

1

Pin A

s

s

ign
me
nts

C

S

495

3xx

H
a

rd

w

a

re

U
s

e

r’s

M
a

n

ual

62

91

SD_A6

SDRAM Address Bit 6 EXT_A6

Flash Address Bit 6

3.3V
(5V tol)

OUT

63

92

GNDIO4

I/O ground

0V

PWR

64

93

SD_A5

SDRAM Address Bit 5 EXT_A5

Flash Address Bit 5

3.3V
(5V tol)

OUT

65

94

EXT_CS2

Chip Select 2

3.3V
(5V tol)

OUT

66

95

VDD4

Core power supply
voltage

1.8V

PWR

67

96

SD_A4

SDRAM Address Bit 4 EXT_A4

Flash Address Bit 4

3.3V
(5V tol)

OUT

68

97

SD_A3

SDRAM Address Bit 3 EXT_A3

Flash Address Bit 3

3.3V
(5V tol)

OUT

69

98

GNDD4

Core ground

0V

PWR

70

99

SD_A2

SDRAM Address Bit 2 EXT_A2

Flash Address Bit 2

3.3V
(5V tol)

OUT

71

101

SD_A1

SDRAM Address Bit 1 EXT_A1

Flash Address Bit 1

3.3V
(5V tol)

OUT

72

102

SD_A0

SDRAM Address Bit 0 EXT_A0

Flash Address Bit 0

3.3V
(5V tol)

OUT

73

100

VDDIO5

I/O power supply
voltage

3.3V

PWR

74

103

SD_A10

SDRAM Address Bit
10

EXT_A10

Flash Address Bit 10

3.3V
(5V tol)

OUT

75

104

SD_BA0

SDRAM Bank Address
0

EXT_A13

Flash Address Bit 13

3.3V
(5V tol)

OUT

76

105

GNDIO5

I/O ground

0V

PWR

77

106

SD_BA1

SDRAM Bank Address
1

EXT_A14

Flash Address Bit 14

3.3V
(5V tol)

OUT

78

107

SD_WE

SDRAM Write Enable

3.3V
(5V tol)

OUT

Table 9-10. Pin Assignments (Continued)

LQFP-

144

Pin #

LQFP-

128

Pin #

Function 1

(Default)

Description of Default

Function

Secondary Functions

Description of Secondary

Functions

Pwr

Type

Reset

State

Pullup

at

Reset

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