2-16
DSP56309UM/D MOTOROLA
Signal/Connection Descriptions
Host Interface (HI08)
2.8
HOST INTERFACE (HI08)
The HI08 provides a fast parallel 8-bit port, which can connect directly to the host bus.
The HI08 supports a variety of standard buses and can be directly connected to a
number of industry standard microcomputers, microprocessors, DSPs, and DMA
hardware.
2.8.1
Host Port Usage Considerations
When reading multiple-bit registers that are written by another asynchronous system,
you must synchronize carefully. This problem commonly occurs when two
asynchronous systems are connected (as they are in the host port). The considerations
for proper operation are discussed in
MODD
IRQD
Input
Input
Mode Select D
ÑMODD is an active-low
Schmitt-trigger input, internally synchronized to
CLKOUT. MODA, MODB, MODC, and MODD
select one of 16 initial chip operating modes,
latched into OMR when the RESET signal is
deasserted.
External Interrupt Request D
ÑAfter hardware
reset, this signal becomes a level-sensitive or
negative-edge-triggered, maskable interrupt
request input during normal instruction
processing. If IRQD is asserted synchronous to
CLKOUT, multiple processors can be
resynchronized using the WAIT instruction and
asserting IRQD to exit the wait state.
Table 2-9
Interrupt and Mode Control (Continued)
Signal Name
Type
State
During
Reset
Signal Description
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
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