Datasheet

RXIN0
RXIN1
RXIN2
RXIN4/ASCKI0
RXIN3
RXIN5/ABCKI0
RXIN6/ALRCKI 0
RXIN7/ADIN0
Clock/ Data
Recovery
MPIO_A
SELECTOR
MPIO _A0 ( MSCKI)
MPIO _A1 ( MBCKI)
MPIO _A2 ( MLRCKI )
MPIO _A3 ( MDIN0 )
MPIO_C
SELECTOR
MPIO _C0( CLKST )
MPIO _C1( MDIN1 )
MPIO _C2( MDIN2 )
MPIO _C3( MDIN3 )
MPIO _B
SELECTOR
MPIO_B0 (MDOUT 0)
MPIO_B1 (MDOUT 1)
MPIO_B2 (MDOUT 2)
MPIO_B3 (MDOUT 3)
ADC
VINL
VINR
Com. Supply
VCOM
MPO0/1
SELECTOR
MPO 0
MPO 1
MAIN
OUTPUT
SCKO
BCK
LRCK
DOUT
PORT
RXIN7
RXIN6
RXIN5
RXIN4
RXIN3
RXIN2
RXIN1
RXIN0
DITOUT
AUTO
DIR
ADC
AUXIN0
AUXIN1
AUXIN2
AUTO
DIR
ADC
AUXIN0
AUXIN1
AUXIN2
AUTO
DIR
ADC
AUXIN0
AUXIN1
DIT
Lock:DIR
Unlock:ADC
AUXIN 2
AUXOUT
DITOUT
RECOUT0
RECOUT1
AUXIN 0
AUXIN1
ADCStandalone
ADCMode
Control
FILT
PLL
DIR
LockDetection
ADC
RECOUT0
RECOUT1
PCM9211
SBAS495 –JUNE 2010 www.ti.com
Multi-Channel PCM Routing Function
Overview
The PCM9211 has a multi-channel PCM routing function (maximum of eight channels) that can route
multi-channel PCM signals easily. This function is enabled by using all the MPIOs.
MPIO_A and MPIO_C are assigned as multi-channel PCM input ports and clock transition outputs (CLKST).
MPIO_B and the Main audio port are assigned as multi-channel PCM output ports. For some applications, these
multi-channel PCM output ports have five data pins. The DOUT pin and the MDOUT pin share the same data.
A detailed block diagram is shown in Figure 33.
Figure 33. Multi-Channel PCM Routing Block Diagram
Initial Setting
To use the multi-channel function, set Register MCHR to '1'. In the multi-channel function, the assigned MPIO
function for Registers MPASEL[1:0], MPBSEL[2:0], and MPCSEL[2:0], are invalid; in other words, Register
MCHR has greater priority than Registers MPASEL[1:0], MPBSLE[2:0], and MPCSEL[2:0].
NOTE
In multi-channel PCM mode, Register MCHR (20h) and Register MPAxHz (6Eh) must be
set to '0' in order to get the outputs from the main port.
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Product Folder Link(s): PCM9211