1-8
DSP56309UM/D MOTOROLA
DSP56309 Overview
DSP56300 Core Functional Blocks
1.6
DSP56300 CORE FUNCTIONAL BLOCKS
The DSP56300 core provides the following functional blocks:
¥ Data ALU
¥ AGU
¥ PCU
¥ PLL and Clock Oscillator
¥ JTAG TAP and OnCE module
¥ Memory
In addition, the DSP56309 provides a set of on-chip peripherals, described in
.
1.6.1
Data ALU
The Data ALU performs all the arithmetic and logical operations on data operands in the
DSP56300 core. The components of the Data ALU are as follows:
¥ Fully pipelined 24
´
24-bit parallel multiplier-accumulator (MAC)
¥ Bit field unit, comprising a 56-bit parallel barrel shifter (fast shift and
normalization; bit stream generation and parsing)
¥ Conditional ALU instructions
¥ 24-bit or 16-bit arithmetic support under software control
¥ Four 24-bit input general-purpose registers: X1, X0, Y1, and Y0
¥ Six Data ALU registers (A2, A1, A0, B2, B1, and B0) that are concatenated into two
general-purpose, 56-bit accumulators, A and B, accumulator shifters
¥ Two data bus shifter/limiter circuits
1.6.1.1
Data ALU Registers
The Data ALU registers can be read or written over the X data bus (XDB) and the Y data
bus (YDB) as 16- or 32-bit operands. The source operands for the Data ALU, which can
be 16, 32, or 40 bits, always originate from Data ALU registers. The results of all
Data ALU operations are stored in an accumulator.
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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