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Motorola DSP56012 User Manual

Page 15

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Motorola

xv

Figure 4-36

DMA Transfer and HI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . .4-61

Figure 4-37

Host to DSP DMA Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . .4-63

Figure 5-1

Serial Host Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . .5-4

Figure 5-2

SHI Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

Figure 5-3

SHI Programming Model—Host Side . . . . . . . . . . . . . . . . . . . . . .5-5

Figure 5-4

SHI Programming Model—DSP Side . . . . . . . . . . . . . . . . . . . . . .5-6

Figure 5-5

SHI I/O Shift Register (IOSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8

Figure 5-6

SPI Data-To-Clock Timing Diagram . . . . . . . . . . . . . . . . . . . . . .5-10

Figure 5-7

I

2

C Bit Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-20

Figure 5-8

I

2

C Start and Stop Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-21

Figure 5-9

Acknowledgment on the I

2

C Bus . . . . . . . . . . . . . . . . . . . . . . . .5-21

Figure 5-10

I

2

C Bus Protocol For Host Write Cycle . . . . . . . . . . . . . . . . . . . .5-22

Figure 5-11

I

2

C Bus Protocol For Host Read Cycle . . . . . . . . . . . . . . . . . . . .5-22

Figure 6-1

SAI Baud-Rate Generator Block Diagram . . . . . . . . . . . . . . . . . .6-4

Figure 6-2

SAI Receive Section Block Diagram . . . . . . . . . . . . . . . . . . . . . . .6-5

Figure 6-3

SAI Transmit Section Block Diagram . . . . . . . . . . . . . . . . . . . . . .6-7

Figure 6-4

SAI Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

Figure 6-5

Receiver Data Shift Direction (RDIR) Programming . . . . . . . . . .6-12

Figure 6-6

Receiver Left/Right Selection (RLRS) Programming . . . . . . . . .6-12

Figure 6-7

Receiver Clock Polarity (RCKP) Programming . . . . . . . . . . . . . .6-13

Figure 6-8

Receiver Relative Timing (RREL) Programming . . . . . . . . . . . .6-14

Figure 6-9

Receiver Data Word Truncation (RDWT) Programming . . . . . . .6-14

Figure 6-10

Transmitter Data Shift Direction (TDIR) Programming . . . . . . . .6-19