8-4
DSP56367
MOTOROLA
Host Interface (HDI08)
HDI08 Host Port Signals
•
Thomson P6 family
•
external DMA controllers
–
Minimal glue-logic (pullups, pulldowns) required to interface to the following:
•
ISA bus
•
Motorola 68K family
•
Intel X86 family.
8.3
HDI08 HOST PORT SIGNALS
The host port signals are described in Section 2. If the Host Interface functionality is not
required, the 16 pins may be defined as general purpose I/O pins PB0-PB15. When the HDI08
is in use, only five host port signals (HA8, HA9, HCS, HOREQ and HACK) may be
individually programmed as GPIO pins if they are not needed for their HDI08 function.
Summary of the HDI08 signals.
Table 8-1 HDI08 Signal Summary
HDI08 Port Pin
Multiplexed address/data bus
Mode
Non Multiplexed bus Mode
GPIO Mode
HAD0-HAD7
HAD0-HAD7
H0-H7
PB0-PB7
HAS/HA0
HAS/HAS
HA0
PB8
HA8/HA1
HA8
HA1
PB9
HA9/HA2
HA9
HA2
PB10
HCS/HA10
HA10
HCS/HCS
PB13
Table 8-2 Strobe Signals Support signals
HDI08 Port Pin
Single strobe bus
Dual strobe bus
GPIO Mode
HRW/HRD
HRW
HRD/HRD
PB11
HDS/HWR
HDS/HDS
HWR/HWR
PB12
Table 8-3 Host request support signals
HDI08 Port Pin
Vector required
No vector required
GPIO Mode
HOREQ/HTRQ
HOREQ/HOREQ
HTRQ/HTRQ
PB14
HACK/HRRQ
HACK/HACK
HRRQ/HRRQ
PB15
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......