Analog Devices SHARC ADSP-214 Series Hardware Reference Manual page 516

Table of Contents

Programming Model

become non-empty by polling the

operation, initialize the transmit buffer with the first data word to

be transmitted.

7. Configure and enable multichannel in the multichannel control

Multichannel Mode Backward Compatibility

In previous SHARC models, the serial port pair used the same control reg-

) to program multichannel mode. In the ADSP-214xx

processors, this register is simply renamed to

has been added. Note that both however are identical. Programs

using the older code simply need to change from the

The following steps should be taken to port the code to the ADSP-214xx

1. Instead of programming

2. In previous processors the data direction bit in the

was hard coded in multichannel mode (where the even port is

always the transmitter and the odd port is always the receiver). But

in the ADSP-214xx processors, the direction (

ored and therefore should be set as required.

3. Routing models for hard coded multichannel pairs used the even

SPORT for the clock and the odd SPORT for the frame sync. The

signal was derived from the even frame sync. In the

ADSP-214xx processors, these limitations no longer apply. All

SPORTs operate completely independently. Therefore every

SPORT requires the clock and frame sync to be routed. The

signal is separate and is fed into the SRU unit.

www.BDTIC.com/ADI

ADSP-214xx SHARC Processor Hardware Reference

bits. For core mode

and a new register,

only, program both

bit) is hon-

Chapters

Table of Contents