User guide

DS810UM6 Copyright 2013 Cirrus Logic P-23
CS4953x4 Pin Assignments
CS4953x4/CS4970x4 System Designer’s Guide
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
1. CSW_U
2. XMTB_IN
1. Channel status user data input
2. S/PDIF Pass-thru Input
3.3V (5V
tol)
BiDir IN Y
93 121 RESET Chip Reset
3.3V (5V
tol)
In
94 122 GNDIO6 I/O ground 0V PWR
95 123 GPIO33
General Purpose Input/
Output
SCP1_MOSI
SPI Mode Master Data Output/Slave
Data Input
3.3V (5V
tol)
BiDir IN Y
96 - GPIO32
General Purpose Input/
Output
1. SCP1_CS
2. IOWAIT
1. SPI Chip Select
2. SRAM Hold-Off Handshake
3.3V (5V
tol)
BiDir IN Y
97 124 GPIO34
General Purpose Input/
Output
1. SCP1_MISO
2. SCP1_SDA
1. SPI Mode Master Data Input/Slave
Data Output
2. I
2
C Mode Master/Slave Data IO
3.3V (5V
tol)
BiDir/OD IN Y
98 125 VDD6 Core power supply voltage 1.8V PWR
Table P-11. CS4953x4 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
Pullup
at
Reset