![NXP Semiconductors LCP43 Series User Manual Download Page 1044](http://html1.mh-extra.com/html/nxp-semiconductors/lcp43-series/lcp43-series_user-manual_17218171044.webp)
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
UM10
503
Al
l i
n
for
m
at
ion
pr
ovi
ded
in
this
do
cum
ent i
s
sub
jec
t to
leg
a
l d
is
c
la
im
er
s.
©
NXP
B.V
. 2012.
Al
l r
ig
h
ts
r
e
s
e
rv
ed.
User m
anu
al
Rev
. 1.
3 — 6 Ju
ly 2012
1044 of
1269
N
X
P Semi
conductor
s
UM10503
Chap
te
r 4
1:
L
P
C4
3xx
I2
S
int
erf
ace
CREG6 bits 12 and 13 select PLL0AUDIO for the I2S0 interface. CREG bits 14 and 15 select PLL0AUDIO for the I2S1 interface.
Fig 134. I2S clocking and pin connections
I
2
S
peripheral
block
I2STXMODE[1:0]
I2STXMODE[2]
0
1
1
0
I2SRXMODE[2]
TX_SCK
RX_SCK
(1 to 64)
(1 to 64)
TX_MCLK
10
00
8-bit
Fractional
Rate Divider
X
Y
I2STX_RATE[15:8]
I2STX_RATE[7:0]
1
0
I2STXBITRATE[5:0]
RX_MCLK
8-bit
Fractional
Rate Divider
X
Y
I2SDAI[5]
I2STX_RATE[15:8]
I2STX_RATE[7:0]
01
10
I2SRXMODE[1:0]
I2SRXBITRATE[5:0]
I2STXMODE[2]
0
1
1
0
I2SRXMODE[2]
TX_WS
RX_WS
I2SDAO[5]
Pin OEn
I2S_RX_WS
I2SDAI[5]
Pin OEn
I2S_RX_SDA
I2S_RX_MCLK
I2SRXMODE[3]
I2S_RX_SCK
Pin OE
I2S_TX_WS
I2S_TX_SDA
I2S_TX_MCLK
I2STXMODE[3]
Pin OE
I2S_TX_SCK
0
1
01
I2SDAO[5]
0
1
CREG6[12]
0
1
00
0
1
CREG6[13]
0
1
PLLAUDIO
PLLAUDIO
PCLK