Programming The Src Module; Src Control Register Programming; Sru Programming - Analog Devices SHARC ADSP-21368 Hardware Reference Manual

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Programming the SRC Module

Programming the SRC Module
Use the following guidelines when developing programs that include the
SRC module.

SRC Control Register Programming

Initially, programs configure the SRC control registers
. The
SRCCTL1
SRCCTL0
and SRC1 modules and the
the SRC2 and SRC3 modules. The control parameters include mute
information, data formats for input and output ports, de-emphasis enable,
dither enable, and matched-phase mode enable for multiple SRCs. Write
the settings to the desired control register at least one cycle before setting
the corresponding SRC module enable bit,

SRU Programming

The SRU (signal routing unit) needs to be programmed in order to con-
nect the SRCs to the output pins or any other peripherals.
For normal operation, the data, clock, and frame sync signals need to be
routed as shown in
Table 10-4. SRC Signal Routing
Signal
SRCx_DAT_IP_I
SRCx_CLK_IP_I
SRCx_FS_IP_I
SRCx_DAT_OP_I
SRCx_CLK_OP_I
SRCx_FS_OP_O
10-22
register contains control parameters for the SRC0
register contains control values for
SRCCTL1
Table
10-4.
Definition
SRC module data input
SRC module clock input
SRC module frame sync input
SRC module data output
SRC module clock output
SRC module frame sync output
ADSP-21368 SHARC Processor Hardware Reference
SRCCTL0
.
SRCx_ENABLE
and

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