Cirrus Logic CS4970x4 User Manual
Page 25
DS810
UM6
C
op
yri
ght 2
013
Ci
rru
s
Lo
gic
P
-14
CS49
70x4 Pin Assign
me
nts
CS4953
x4/CS497
0x4 System Desig
ner’s Gu
ide
60
89
VDDIO4
I/O power supply voltage
3.3V
PWR
61
90
SD_A7
SDRAM Address Bit 7
EXT_A7
Flash Address Bit 7
3.3V (5V tol) OUT
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
79
108
SD_CAS
SDRAM Column Address Strobe
3.3V (5V tol) OUT
80
109
SD_RAS
SDRAM Row Address Strobe
3.3V (5V tol) OUT
81
110
SD_CS
SDRAM Chip Select
3.3V (5V tol) OUT
82
111
EXT_A15
Flash Address Bit 15
3.3V (5V tol) OUT
83
112
VDD5
Core power supply voltage
1.8V
PWR
84
113
EXT_A16
Flash Address Bit 16
3.3V (5V tol) OUT
85
114
EXT_A17
Flash Address Bit 17
3.3V (5V tol) OUT
86
115
GNDD5
Core ground
0V
PWR
87
116
EXT_A18
Flash Address Bit 18
3.3V (5V tol) OUT
88
117
EXT_A19
Flash Address Bit 19
3.3V (5V tol) OUT
89
118
EXT_OE
Flash Output Enable
3.3V (5V tol) OUT
90
119
EXT_CS1
Active-low Flash chip select
3.3V (5V tol) OUT
91
120
VDDIO6
I/O power supply voltage
3.3V
PWR
92
-
GPIO30
General Purpose Input/Output
XMTB_IN
S/PDIF Pass-thru Input
3.3V (5V tol) BiDir
IN
Table P-10. CS4970x4 Pin Assignments (Continued) for 144-Pin and 128-Pin Packages (Continued)
LQFP-
144
Pin #
LQFP-
128
Pin #
Function 1
(Default)
Description of Default Function
Secondary Functions
Description of Secondary
Functions
Pwr
Type
Reset
State