Rules For Sru Connections; Making Sru Connections - Analog Devices SHARC ADSP-214 Series Hardware Reference Manual

Functional Description

Rules for SRU Connections

There are two rules which apply to all routing:
1. Each input must connect to exactly one output
2. An output can feed any number of inputs
As an example from
•
DAI_PB01_O
•
DAI_PB01_O
•
SPORT4_CLK_O

Inputs may only be connected to outputs.

Making SRU Connections

In this section, three types of SRU routing are demonstrated.
1. Listing 9-1
DAI and pin buffers.
2. Listing 9-2 on page 9-22
SRU connection between the DAI pin buffers and SPORTs.
3. Listing 9-3 on page 9-23
connection from the SPORT/PCG to the MISC/DAI pin buffers.

These examples use a macro which is provided by the VisualDSP
tools. Also see
Listing 9-1. SRU Connection Between DAI Pin Buffers
SRU(HIGH, PBEN03_I);
nop;
SRU(LOW, PBEN14_I);
9-20
www.BDTIC.com/ADI
Figure 9-9:
is routed to
SPORT5_CLK_I
is routed to
SPORT4_CLK_I
is routed to
SPORT3_CLK_I
and Figure 9-10 show the SRU connection between the
and Figure 9-11 on page 9-22
and Figure 9-12 on page 9-23
"Programming Model" on page
// DAI pin 3 output
// DAI pin 14 input
ADSP-214xx SHARC Processor Hardware Reference
show the
show SRU
9-42.