SH7268/SH7269 Group

Transmission/Reception of Renesas SPDIF Interface

R01AN1188EJ0100 Rev.1.00

Page 2 of 23

Jul. 27, 2012

Contents

1.

Specifications ..................................................................................................................................... 3

2.

Operation Confirmation Conditions .................................................................................................... 4

3.

Reference Application Note................................................................................................................ 4

4.

Peripheral Functions........................................................................................................................... 5

4.1

Channel Configuration ................................................................................................................. 5

4.2

Transfer Data ............................................................................................................................... 5

4.3

Oversampling Clock and Sampling Frequency............................................................................ 6

5.

Hardware ............................................................................................................................................ 7

5.1

Pins Used..................................................................................................................................... 7

5.2

Hardware Configuration ............................................................................................................... 7

6.

Software ............................................................................................................................................. 8

6.1

Operation Overview ..................................................................................................................... 8

6.2

File Composition .......................................................................................................................... 9

6.3

Constants ..................................................................................................................................... 9

6.4

Structure/Union List ................................................................................................................... 10

6.5

Variables .................................................................................................................................... 10

6.6

Functions.................................................................................................................................... 10

6.7

Function Specifications .............................................................................................................. 11

6.8

Flowcharts.................................................................................................................................. 15

6.8.1

Main Processing ................................................................................................................. 15

6.8.2

Initialization of RSPDIF....................................................................................................... 16

6.8.3

Starting of RSPDIF Transmission....................................................................................... 17

6.8.4

Starting of RSPDIF Reception ............................................................................................ 18

6.8.5

Updating Channel Status of RSPDIF Transmission ........................................................... 18

6.8.6

Initialization of DMAC Channel 4 ........................................................................................ 19

6.8.7

Initialization of DMAC Channel 5 ........................................................................................ 20

6.8.8

Interrupt Function of RSPDIF ............................................................................................. 21

6.8.9

DMA Transfer Completion Interrupt.................................................................................... 22

7.

Sample Code.................................................................................................................................... 23

8.

Reference Documents...................................................................................................................... 23