2-10
DSP56367
MOTOROLA
Signal/Connection Descriptions
Parallel Host Interface (HDI08)
Table 2-9 Host Interface
Signal Name
Type
State during
Reset
Signal Description
H0–H7
Input/
output
Host Data—When HDI08 is programmed to interface a nonmultiplexed
host bus and the HI function is selected, these signals are lines 0–7 of the
bidirectional, tri-state data bus.
HAD0–HAD7
Input/
output
Host Address/Data—When HDI08 is programmed to interface a
multiplexed host bus and the HI function is selected, these signals are lines
0–7 of the address/data bidirectional, multiplexed, tri-state bus.
PB0–PB7
Input, output, or
disconnected
GPIO
disconnected
Port B 0–7—When the HDI08 is configured as GPIO, these signals are
individually programmable as input, output, or internally disconnected.
The default state after reset for these signals is GPIO disconnected.
These inputs are 3.3V tolerant.
HA0
Input
GPIO
disconnected
Host Address Input 0—When the HDI08 is programmed to interface a
nonmultiplexed host bus and the HI function is selected, this signal is line 0
of the host address input bus.
HAS/HAS
Input
Host Address Strobe—When HDI08 is programmed to interface a
multiplexed host bus and the HI function is selected, this signal is the host
address strobe (HAS) Schmitt-trigger input. The polarity of the address
strobe is programmable, but is configured active-low (HAS) following
reset.
PB8
Input, output, or
disconnected
Port B 8—When the HDI08 is configured as GPIO, this signal is
individually programmed as input, output, or internally disconnected.
The default state after reset for this signal is GPIO disconnected.
This input is 3.3V tolerant.
HA1
Input
GPIO
disconnected
Host Address Input 1—When the HDI08 is programmed to interface a
nonmultiplexed host bus and the HI function is selected, this signal is line 1
of the host address (HA1) input bus.
HA8
Input
Host Address 8—When HDI08 is programmed to interface a multiplexed
host bus and the HI function is selected, this signal is line 8 of the host
address (HA8) input bus.
PB9
Input, output, or
disconnected
Port B 9—When the HDI08 is configured as GPIO, this signal is
individually programmed as input, output, or internally disconnected.
The default state after reset for this signal is GPIO disconnected.
This input is 3.3V tolerant.
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: ......