PEDS87V1021-01

1Semiconductor

MS87V1021

3/63

Delayed Play Mode ...........................................................................................................................................36

Retroactive Play Mode (1) ................................................................................................................................37

Retroactive Play Mode (2) ................................................................................................................................38

Recording in Normal Mode ..............................................................................................................................39

Playback in Normal Mode .................................................... ............................................................................40

Dtrw Command.................................................................................................................................................41

STATUS TRANSITION DIAGRAM.................................................................................................................42

SUMMARY OF OPERATING MODES AND FUNCTIONS...........................................................................43

Delayed Play Mode ............................................................................................................................................43

Retroactive Play Mode......................................................................................................................................44

Normal Mode ....................................................................................................................................................45

Fast Forward/Rewind Function (Cue/Rew) ......................................................................................................46

Copy Command ................................................................................................................................................47

MEMORY ALLOCATION ................................................................................................................................49

Storing Sound Data to DRAM (In Pages) .........................................................................................................49

Storing Sound Data to DRAM (In Blocks). ......................................................................................................50

Controlling Address in Retroactive Play Mode ................................................................................................53

Controlling Address in Normal Mode...............................................................................................................54

Address Control Data for Each Phrase..............................................................................................................55

Addressing with the Adrrd and Adrwr Commands...........................................................................................56

Memory Allocation of Mask ROM ...................................................................................................................57

Memory Map.....................................................................................................................................................58

Recording Time Length...................... ..............................................................................................................59

Delay Time in Delayed Play Mode and Retroactive Play Mode.......................................................................61

PACKAGE DIMENSIONS ................................................................................................................................62