HOST INTERFACE (HI32)
DSP SIDE Programming Model
MOTOROLA
DSP56305 User’s Manual
6-19
6.5.1.13.4
Enhanced Universal Bus Mode (HM = $3):
The HI32 supports:
• Slave-only glueless connection to various external buses (e.g. ISA/EISA,
DSP56300 core based DSP Port A bus).
• 24-, 16- (with data alignment), and 8-bit buses.
• ISA/EISA bus DMA-type accesses.
• Output of two control signals (data direction and data output enable) to an
optional external data buffer.
• Host select acknowledge output.
• HP19, HP31 and HP32 are unused and must be forced or pulled up to Vcc.
• When operating with a host bus less than 24 bits wide, the data signals that are
not used for transferring data must be forced or pulled up or down to Vcc or to
GND respectively. For example: when operating with a 16-bit bus (e.g. ISA bus),
HP48-HP41 must be forced or pulled up to Vcc or pulled down to GND.
6.5.1.13.5
GPIO Mode (HM = $4):
The HI32 supports:
• General purpose I/O (GPIO) port.
• Pins HP23-HP0 are GPIO.
• Pins HP48-HP33, HP30-24 are disconnected.
• HP31 and HP32 are unused and must be forced or pulled up to Vcc.
• Minimum current consumption.
6.5.1.13.6
Self Configuration Mode (HM = $5):
The HI32 supports:
• Indirect DSP56300 core access to the CCMR, CLAT and CBMA HI32
configuration registers.
• All the host port signals are in the disconnected state.
The value of the HM bits may be changed to a non zero value by the DSP56300 core only
when the HI32 is in the personal software reset state (HM = $0, HACT = 0), they must
not be changed together (i.e. in the same core write) with any of the following bits:
HDSM, HRWP, HTAP, HDRP, HRSP, HIRH, or HIRD.
The combinations HM = $6, HM = $7 are reserved for future expansion and should not
be used.
Hardware and software resets clear the HM bits.
Summary of Contents for DSP56305
Page 34: ...xxxii DSP56305 User s Manual MOTOROLA ...
Page 40: ...xxxvi DSP56305 User s Manual MOTOROLA ...
Page 41: ...MOTOROLA DSP56305 User s Manual 1 1 SECTION 1 DSP56305 OVERVIEW ...
Page 58: ...1 18 DSP56305 User s Manual MOTOROLA DSP56305 Overview DSP56305 Architecture Overview ...
Page 59: ...MOTOROLA DSP56305 User s Manual 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Page 98: ...2 40 DSP56305 User s Manual MOTOROLA Signal Connection Descriptions JTAG OnCE Interface ...
Page 99: ...MOTOROLA DSP56305 User s Manual 3 1 SECTION 3 MEMORY CONFIGURATION ...
Page 119: ...MOTOROLA DSP56305 User s Manual 4 1 SECTION 4 CORE CONFIGURATION ...
Page 144: ...4 26 DSP56305 User s Manual MOTOROLA Core Configuration JTAG Boundary Scan Register BSR ...
Page 145: ...MOTOROLA DSP56305 User s Manual 5 1 SECTION 5 GENERAL PURPOSE I O ...
Page 149: ...HOST INTERFACE HI32 MOTOROLA DSP56305 User s Manual 6 1 SECTION 6 HOST INTERFACE HI32 ...
Page 150: ...6 2 DSP56305 User s Manual MOTOROLA HOST INTERFACE HI32 ...
Page 259: ...MOTOROLA DSP56305 User s Manual 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Page 315: ...MOTOROLA DSP56305 User s Manual 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Page 347: ...MOTOROLA DSP56305 User s Manual 9 1 SECTION 9 TIMER EVENT COUNTER ...
Page 376: ...9 30 DSP56305 User s Manual MOTOROLA Timer Event Counter Timer Modes of Operation ...
Page 377: ...MOTOROLA DSP56305 User s Manual 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Page 411: ...MOTOROLA DSP56305 User s Manual 11 1 SECTION 11 JTAG PORT ...
Page 430: ...11 20 DSP56305 User s Manual MOTOROLA JTAG Port DSP56305 Boundary Scan Register ...
Page 431: ...Filter Co Processor MOTOROLA DSP56305 User s Manual 12 1 SECTION 12 FILTER CO PROCESSOR ...
Page 471: ...VITERBI CO PROCESSOR MOTOROLA DSP56305 User s Manual 13 1 SECTION 13 VITERBI CO PROCESSOR ...
Page 522: ...13 52 DSP56305 User s Manual MOTOROLA VITERBI CO PROCESSOR References ...
Page 554: ...14 32 DSP56305 User s Manual MOTOROLA CYCLIC CODE CO PROCESSOR Configuration Examples ...
Page 555: ...MOTOROLA DSP56305 User s Manual A 1 APPENDIX A BOOTSTRAP CODE ...
Page 568: ...A 14 DSP56305 User s Manual MOTOROLA Bootstrap Code ...
Page 569: ...Equates MOTOROLA DSP56305 User s Manual B 1 APPENDIX B EQUATES ...
Page 589: ...MOTOROLA DSP56305 User s Manual C 1 APPENDIX C JTAG BSDL ...
Page 590: ...C 2 DSP56305 User s Manual MOTOROLA JTAG BSDL ...
Page 600: ...C 12 DSP56305 User s Manual MOTOROLA JTAG BSDL ...
Page 601: ...MOTOROLA DSP56305 User s Manual D 1 APPENDIX D PROGRAMMING REFERENCE ...
Page 602: ...D 2 DSP56305 User s Manual MOTOROLA PROGRAMMING REFERENCE ...
Page 661: ...Y MOTOROLA DSP56305 User s Manual Index 11 ...
Page 662: ...Y Index 12 DSP56305 User s Manual MOTOROLA ...