Motorola DSP56309 User Manual page 21

Figure 6-4 Host Base Address Register (HBAR) (X:$FFFFC5). . . . . . . . . . 6-12
Figure 6-5 Self Chip Select Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12
Figure 6-6 Host Port Control Register (HPCR) (X:$FFFFC4) . . . . . . . . . . . 6-13
Figure 6-7 Single Strobe Bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15
Figure 6-8 Dual Strobe Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16
Figure 6-9 Host Data Direction Register (HDDR) (X:$FFFFC8) . . . . . . . . . 6-17
Figure 6-10 Host Data Register (HDR) (X:$FFFFC9) . . . . . . . . . . . . . . . . . . 6-17
Figure 6-11 HSR-HCR Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20
Figure 6-12 Interface Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22
Figure 6-13 Command Vector Register (CVR) . . . . . . . . . . . . . . . . . . . . . . . 6-25
Figure 6-14 Interface Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26
Figure 6-15 Interrupt Vector Register (IVR). . . . . . . . . . . . . . . . . . . . . . . . . . 6-28
Figure 6-16 HI08 Host Request Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33
Figure 7-1 ESSI Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
Figure 7-2 ESSI Control Register A (CRA) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Figure 7-3 ESSI Control Register B (CRB) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Figure 7-4 ESSI Status Register (SSISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Figure 7-5 ESSI Transmit Slot Mask Register A (TSMA) . . . . . . . . . . . . . . 7-10
Figure 7-6 ESSI Transmit Slot Mask Register B (TSMB) . . . . . . . . . . . . . . 7-10
Figure 7-7 ESSI Receive Slot Mask Register A (RSMA). . . . . . . . . . . . . . . 7-10
Figure 7-8 ESSI Receive Slot Mask Register B (RSMB). . . . . . . . . . . . . . . 7-10
Figure 7-9 ESSI Clock Generator Functional Block Diagram . . . . . . . . . . . 7-12
xviii DSP56309UM/D MOTOROLA