2-16
DSP56305 User’s Manual
MOTOROLA
Signal/Connection Descriptions
Interrupt and Mode Control
Table 2-9
Interrupt and Mode Control
Signal
Name
Type
State
During
Reset
Signal Description
RESET
Input
Input
Reset
—RESET is an active-low, Schmitt-trigger input.
Deassertion of RESET is internally synchronized to the clock
out (CLKOUT). When asserted, the chip is placed in the Reset
state and the internal phase generator is reset. The
Schmitt-trigger input allows a slowly rising input (such as a
capacitor charging) to reset the chip reliably. If RESET is
deasserted synchronous to CLKOUT, exact start-up timing is
guaranteed, allowing multiple processors to start
synchronously and operate together in “lock-step.” When the
RESET signal is deasserted, the initial chip operating mode is
latched from the MODA, MODB, MODC, and MODD inputs.
The RESET signal must be asserted after power up.
This input is 5 V tolerant.
MODA
IRQA
Input
Input
Input
Mode Select A
—MODA selects the initial chip operating
mode during hardware reset and becomes a level-sensitive or
negative-edge-triggered, maskable interrupt request input
IRQA during normal instruction processing. MODA, MODB,
MODC, and MODD select one of sixteen initial chip operating
modes, latched into the OMR when the RESET signal is
deasserted.
External Interrupt Request A
—IRQA is an active-low
Schmitt-trigger input, internally synchronized to CLKOUT. If
IRQA is asserted synchronous to CLKOUT, multiple
processors can be re-synchronized using the WAIT instruction
and asserting IRQA to exit the Wait state. If the processor is in
the Stop standby state and IRQA is asserted, the processor will
exit the Stop state.
These inputs are 5 V tolerant.
Содержание DSP56305
Страница 34: ...xxxii DSP56305 User s Manual MOTOROLA ...
Страница 40: ...xxxvi DSP56305 User s Manual MOTOROLA ...
Страница 41: ...MOTOROLA DSP56305 User s Manual 1 1 SECTION 1 DSP56305 OVERVIEW ...
Страница 58: ...1 18 DSP56305 User s Manual MOTOROLA DSP56305 Overview DSP56305 Architecture Overview ...
Страница 59: ...MOTOROLA DSP56305 User s Manual 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 98: ...2 40 DSP56305 User s Manual MOTOROLA Signal Connection Descriptions JTAG OnCE Interface ...
Страница 99: ...MOTOROLA DSP56305 User s Manual 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 119: ...MOTOROLA DSP56305 User s Manual 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 144: ...4 26 DSP56305 User s Manual MOTOROLA Core Configuration JTAG Boundary Scan Register BSR ...
Страница 145: ...MOTOROLA DSP56305 User s Manual 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 146: ...5 2 DSP56305 User s Manual MOTOROLA General Purpose I O 5 1 Introduction 5 3 5 2 Programming Model 5 3 ...
Страница 149: ...HOST INTERFACE HI32 MOTOROLA DSP56305 User s Manual 6 1 SECTION 6 HOST INTERFACE HI32 ...
Страница 150: ...6 2 DSP56305 User s Manual MOTOROLA HOST INTERFACE HI32 ...
Страница 258: ...6 110 DSP56305 User s Manual MOTOROLA HOST INTERFACE HI32 EXAMPLES OF HOST TO HI32 CONNECTIONS ...
Страница 259: ...MOTOROLA DSP56305 User s Manual 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 314: ...7 56 DSP56305 User s Manual MOTOROLA Enhanced Synchronous Serial Interface ESSI GPIO ESSI Selection and GPIO Usage ...
Страница 315: ...MOTOROLA DSP56305 User s Manual 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 346: ...8 32 DSP56305 User s Manual MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 347: ...MOTOROLA DSP56305 User s Manual 9 1 SECTION 9 TIMER EVENT COUNTER ...
Страница 376: ...9 30 DSP56305 User s Manual MOTOROLA Timer Event Counter Timer Modes of Operation ...
Страница 377: ...MOTOROLA DSP56305 User s Manual 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 410: ...10 34 DSP56305 User s Manual MOTOROLA On Chip Emulation Module Examples of JTAG and OnCE interaction ...
Страница 411: ...MOTOROLA DSP56305 User s Manual 11 1 SECTION 11 JTAG PORT ...
Страница 430: ...11 20 DSP56305 User s Manual MOTOROLA JTAG Port DSP56305 Boundary Scan Register ...
Страница 431: ...Filter Co Processor MOTOROLA DSP56305 User s Manual 12 1 SECTION 12 FILTER CO PROCESSOR ...
Страница 471: ...VITERBI CO PROCESSOR MOTOROLA DSP56305 User s Manual 13 1 SECTION 13 VITERBI CO PROCESSOR ...
Страница 520: ...13 50 DSP56305 User s Manual MOTOROLA VITERBI CO PROCESSOR Programming Examples dc 05d900 dc 000000 dc 000000 ...
Страница 522: ...13 52 DSP56305 User s Manual MOTOROLA VITERBI CO PROCESSOR References ...
Страница 523: ...CYCLIC CODE CO PROCESSOR MOTOROLA DSP56305 User s Manual 14 1 SECTION 14 CYCLIC CODE CO PROCESSOR ...
Страница 554: ...14 32 DSP56305 User s Manual MOTOROLA CYCLIC CODE CO PROCESSOR Configuration Examples ...
Страница 555: ...MOTOROLA DSP56305 User s Manual A 1 APPENDIX A BOOTSTRAP CODE ...
Страница 568: ...A 14 DSP56305 User s Manual MOTOROLA Bootstrap Code ...
Страница 569: ...Equates MOTOROLA DSP56305 User s Manual B 1 APPENDIX B EQUATES ...
Страница 570: ...B 2 DSP56305 User s Manual MOTOROLA Equates B 1 Internal I 0 Equates B 3 B 2 Interrupt Equates B 18 ...
Страница 589: ...MOTOROLA DSP56305 User s Manual C 1 APPENDIX C JTAG BSDL ...
Страница 590: ...C 2 DSP56305 User s Manual MOTOROLA JTAG BSDL ...
Страница 600: ...C 12 DSP56305 User s Manual MOTOROLA JTAG BSDL ...
Страница 601: ...MOTOROLA DSP56305 User s Manual D 1 APPENDIX D PROGRAMMING REFERENCE ...
Страница 602: ...D 2 DSP56305 User s Manual MOTOROLA PROGRAMMING REFERENCE ...
Страница 661: ...Y MOTOROLA DSP56305 User s Manual Index 11 ...
Страница 662: ...Y Index 12 DSP56305 User s Manual MOTOROLA ...
Страница 663: ...Y MOTOROLA DSP56305 User s Manual Index 13 ...
Страница 664: ...Y Index 14 DSP56305 User s Manual MOTOROLA ...