LC823450 Datasheet, PDF (16/55 Pages) ON Semiconductor – Low Power & High-Resolution Audio Processing System LSI

LC823450
(I) SD IF/MS IF
Terminal name
Multiplexed function
SDCLK0
SDCMD0
SDAT0[3:0]
SDCLK1
SCLK
GPIO22
EXTINT22
Polarity Direction Function
−
O
SD I/F Ch0 Clock Output
−
B
SD I/F Ch0 command line
−
B
SD I/F Ch0 Data
−
O
SD I/F Ch1 Clock Output
−
O
Memory Stick Clock Output
−
B
GPIO
−
I
External Interrupt 2-bit2
SDCMD1
BS
GPIO23
EXTINT23
−
B
SD I/F Ch1 command line
−
O
Memory Stick BS
−
B
GPIO
−
I
External Interrupt 2-bit3
SDAT1[3:0]
−
DATA[3:0]
−
GPIO2[7:4]
−
EXTINT2[7:4]
−
Sum
(*)This function is not available
B
SD I/F Ch1 Data
B
Memory Stick Data
B
GPIO
I
External Interrupt 2-bit7 to bit4
(J) SDRAM I/F
Terminal name
Polarity Direction Function
Multiplexed function
SDRCLK
Neg
O
SDRAM Clock Output
SDRCKE
Pos
O
SDRAM Clock enable Output
SDRCS
Neg
O
SDRAM chip select Output
SDRWE
Neg
O
SDRAM write enable Output
SDRCAS
Neg
O
SDRAM CAS Output
SDRRAS
Neg
O
SDRAM RAS Output
SDRDQM[1:0]
Pos
O
SDRAM Data mask byte lane
select
SDRADDR[10:0]
−
O
SDRAM address(*)
SDRBA[1:0]
−
O
SDRAM bank select
SDRDATA[15:0]
−
B
SDRAM Data
Sum
(*) SDRAM address bit is 13bit including SDRADDR [12:11].
IO
POWER
VddSD0
VddSD0
VddSD0
VddSD1
VddSD1
VddSD1
Available(○)
TA
XA, XB,
XC XD
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
○ ○○
12 12 12
IO
POWER
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Vdd2
Available(○)
TA
XA, XB,
XC XD
000
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