Board ID ................................................................................................................................................ 7-10

Interface revision ................................................................................................................................... 7-10

Preview Word Clock Select ................................................................................................................... 7-10

Clock Bus Interface............................................................................................................................ 7-10

Clock Selection .................................................................................................................................. 7-11

PLL Support ....................................................................................................................................... 7-11

Phase-Locked Loop ........................................................................................................................... 7-11

PLL Detailed Description ................................................................................................................... 7-12

Power Supply..................................................................................................................................... 7-14

Analog Input card .................................................................................................................................. 7-15

Overview. ........................................................................................................................................... 7-15

Input Buffer ........................................................................................................................................ 7-15

Common Mode Performance ............................................................................................................. 7-15

A/D Converter .................................................................................................................................... 7-16

Signal Polarity .................................................................................................................................... 7-16

System Interface Logic ...................................................................................................................... 7-16

Control Interface ................................................................................................................................ 7-16

Register Descriptions......................................................................................................................... 7-16

Clock Interface ................................................................................................................................... 7-17

Digital Audio Interface........................................................................................................................ 7-17

Pin Descriptions ................................................................................................................................. 7-18

Power Supply..................................................................................................................................... 7-20

Analog Output card................................................................................................................................ 7-21

Overview ............................................................................................................................................ 7-21

Circuit Description.............................................................................................................................. 7-21

D/A Converter .................................................................................................................................... 7-21

Filter ................................................................................................................................................... 7-22

Output Driver...................................................................................................................................... 7-22

Mute Relay......................................................................................................................................... 7-22

Signal Polarity .................................................................................................................................... 7-23

System Interface Logic ...................................................................................................................... 7-23

Control Interface ................................................................................................................................ 7-23

Register Descriptions......................................................................................................................... 7-23

Clock Interface ................................................................................................................................... 7-23

Digital Audio Interface........................................................................................................................ 7-24

Power Supply..................................................................................................................................... 7-26

AES card ............................................................................................................................................... 7-28

Introduction ........................................................................................................................................ 7-28

Overview ............................................................................................................................................ 7-28

Circuit Description.............................................................................................................................. 7-29

Startup Sequence .............................................................................................................................. 7-29

AES card Memory Map...................................................................................................................... 7-29

FPGA Control Register ...................................................................................................................... 7-30

FPGA Lock Register .......................................................................................................................... 7-30

Locking to the AES Input Word Clock ................................................................................................ 7-31

Octal Select Register ......................................................................................................................... 7-31

Local Loopback Mode:....................................................................................................................... 7-32

Reverb card ........................................................................................................................................... 7-32

Introduction ........................................................................................................................................ 7-32

Overview ............................................................................................................................................ 7-32

Circuit Description.............................................................................................................................. 7-33

Startup Sequence .............................................................................................................................. 7-36

DSP 56301 Expansion Port Memory Map ......................................................................................... 7-37

Larc2...................................................................................................................................................... 7-39

General Description ........................................................................................................................... 7-39

Central Processor (sheet 1) ............................................................................................................... 7-40

Lexicon

Table of Contents