5

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE

INDUSTRIAL TEMPERATURE RANGE

LIST OF FIGURES

Figure - 1

An Example of the MPI Interface Write Operation .............................................................................................................................. 9

Figure - 2

An Example of the MPI Interface Read Operation (ID = 81H)............................................................................................................. 9

Figure - 3

Sampling Edge Selection Waveform................................................................................................................................................. 10

Figure - 4

Signal Flow for Each Channel........................................................................................................................................................... 11

Figure - 5

Debounce Filter................................................................................................................................................................................. 13

Figure - 6

General Procedure of Sending Caller-ID Signal................................................................................................................................ 14

Figure - 7

A Recommended Procedure of Programming the FSK Generator ................................................................................................... 15

Figure - 8

Clock Timing...................................................................................................................................................................................... 40

Figure - 9

MPI Input Timing ............................................................................................................................................................................... 41

Figure - 10

MPI Output Timing ............................................................................................................................................................................ 41

Figure - 11

Transmit and Receive Timing............................................................................................................................................................ 42

Figure - 12

Typical Frame Sync Timing (2 MHz Operation) ................................................................................................................................ 42

Figure - 13

Coe-RAM Mapping............................................................................................................................................................................ 43