Motorola DSP56009 User manual

DSP56009
24-Bit Digital Signal Processor
User’s Manual
Motorola, Incorporated
Semiconductor Products Sector
DSP Division
6501 William Cannon Drive West
Austin, TX 78735-8598

This document (and other documents) can be viewed on the World Wide
Web at http://www.motorola-dsp.com.
This manual is one of a set of three documents. You need the following
manuals to have complete product information: Family Manual, User’s
Manual, and Technical Data.
OnCE

is a trademark of Motorola, Inc.
 MOTOROLA INC., 1996
Order this document by DSP56009UM/AD
Motorola reserves the right to make changes without further notice to any products
herein to improve reliability, function, or design. Motorola does not assume any
liability arising out of the application or use of any product or circuit described
herein; neither does it convey any license under its patent rights nor the rights of
others. Motorola products are not authorized for use as components in life support
devices or systems intended for surgical implant into the body or intended to
support or sustain life. Buyer agrees to notify Motorola of any such intended end use
whereupon Motorola shall determine availability and suitability of its product or
products for the use intended. Motorola and
are registered trademarks of
Motorola, Inc. Motorola, Inc. is an Equal Employment Opportunity /Affirmative
Action Employer.

OVERVIEW
SIGNAL DESCRIPTIONS
MEMORY, OPERATING MODES, AND INTERRUPTS
EXTERNAL MEMORY INTERFACE
SERIAL HOST INTERFACE
SERIAL AUDIO INTERFACE
GENERAL PURPOSE I/O
BOOTSTRAP CODE CONTENTS
PROGRAMMING REFERENCE
APPLICATION EXAMPLES
INDEX
1
2
3
4
6
7
5
I
A
B
C

OVERVIEW
SIGNAL DESCRIPTIONS
MEMORY, OPERATING MODES, AND INTERRUPTS
EXTERNAL MEMORY INTERFACE
SERIAL HOST INTERFACE
SERIAL AUDIO INTERFACE
GENERAL PURPOSE I/O
BOOTSTRAP CODE CONTENTS
PROGRAMMING SHEETS
APPLICATION EXAMPLES
INDEX
1
2
3
4
6
7
5
I
A
B
C

MOTOROLA DSP56009User’sManual iii
TABLE OF CONTENTS
SECTION 1 OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.1.1 Manual Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.1.2 Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.2 DSP56009 FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1.3 DSP56009 ARCHITECTURAL OVERVIEW . . . . . . . . . . . . .1-8
1.3.1 Memory and Peripheral Modules. . . . . . . . . . . . . . . . . . .1-10
1.3.2 DSP Core Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
1.3.2.1 Data Arithmetic and Logic Unit (ALU). . . . . . . . . . . . .1-11
1.3.2.2 Address Generation Unit (AGU) . . . . . . . . . . . . . . . . .1-11
1.3.2.3 Program Control Unit . . . . . . . . . . . . . . . . . . . . . . . . .1-12
1.3.2.4 Data Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
1.3.2.5 Address Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
1.3.2.6 Phase Lock Loop (PLL). . . . . . . . . . . . . . . . . . . . . . . .1-12
1.3.2.7 On-Chip Emulation (OnCE) Port. . . . . . . . . . . . . . . . .1-13
1.3.3 Memories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
1.3.3.1 Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-13
1.3.3.2 X Data Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
1.3.3.3 Y Data Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
1.3.3.4 On-Chip Memory Configuration Bits . . . . . . . . . . . . . .1-15
1.3.3.5 Bootstrap ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
1.3.3.6 External Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
1.3.3.7 Reserved Memory Spaces . . . . . . . . . . . . . . . . . . . . .1-16
1.3.4 Input/Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
1.3.4.1 External Memory Interface . . . . . . . . . . . . . . . . . . . . .1-18
1.3.4.2 Serial Host Interface (SHI) . . . . . . . . . . . . . . . . . . . . .1-18
1.3.4.3 Serial Audio Interface (SAI). . . . . . . . . . . . . . . . . . . . .1-19
1.3.4.4 General Purpose Input/Output . . . . . . . . . . . . . . . . . .1-19

iv DSP56009User’sManual MOTOROLA
SECTION 2 SIGNAL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . 2-1
2.1 SIGNAL GROUPINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.2 POWER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.3 GROUND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
2.4 CLOCK AND PLL SIGNALS . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2.5 EXTERNAL MEMORY INTERFACE (EMI) . . . . . . . . . . . . . . 2-7
2.6 INTERRUPT AND MODE CONTROL. . . . . . . . . . . . . . . . . 2-10
2.7 SERIAL HOST INTERFACE (SHI) . . . . . . . . . . . . . . . . . . . 2-14
2.8 SERIAL AUDIO INTERFACE (SAI). . . . . . . . . . . . . . . . . . . 2-18
2.8.1 SAI Receiver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
2.8.2 SAI Transmitter Section . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
2.9 GENERAL PURPOSE I/O. . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
2.10 ON-CHIP EMULATION (ONCETM) PORT. . . . . . . . . . . . . . 2-22
SECTION 3 MEMORY, OPERATING MODES,
AND INTERRUPTS. . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.2 DSP56009 DATA AND PROGRAM MEMORY . . . . . . . . . . . 3-3
3.2.1 X Data ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.2 Y Data ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.3 Program ROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.4 Bootstrap ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.2.5 Reserved Memory Spaces . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.3 DSP56009 DATA AND PROGRAM MEMORY MAPS . . . . . 3-5
3.3.1 Dynamic Switching of Memory Configurations . . . . . . . . . 3-8
3.3.2 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.4 OPERATING MODE REGISTER (OMR). . . . . . . . . . . . . . . 3-11
3.4.1 DSP Operating Mode (MC, MB, MA)—Bits 4, 1, and 0. . 3-11
3.4.2 Program RAM Enable A (PEA)—Bit 2 . . . . . . . . . . . . . . 3-11
3.4.3 Program RAM Enable B (PEB)—Bit 3 . . . . . . . . . . . . . . 3-12
3.4.4 Stop Delay (SD)—Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.5 OPERATING MODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.6 INTERRUPT PRIORITY REGISTER. . . . . . . . . . . . . . . . . . 3-14
3.7 PHASE LOCK LOOP (PLL) CONFIGURATION . . . . . . . . . 3-18
3.8 HARDWARE RESET OPERATION. . . . . . . . . . . . . . . . . . . 3-19

MOTOROLA DSP56009User’s Manual v
SECTION 4 EXTERNAL MEMORY INTERFACE . . . . . . . . . . . .4-1
4.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.1.1 Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.1.2 EMI Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
4.2 EMI PROGRAMMING MODEL . . . . . . . . . . . . . . . . . . . . . . .4-5
4.2.1 EMI Base Address Registers (EBAR0 and EBAR1) . . . . .4-7
4.2.2 EMI Write Offset Register (EWOR) . . . . . . . . . . . . . . . . . .4-7
4.2.3 EMI Offset Register (EOR) . . . . . . . . . . . . . . . . . . . . . . . .4-8
4.2.4 EMI Data Write Registers (EDWR) . . . . . . . . . . . . . . . . . .4-9
4.2.5 EMI Data Read Register (EDRR) . . . . . . . . . . . . . . . . . . .4-9
4.2.6 EMI Data Register Buffer (EDRB) . . . . . . . . . . . . . . . . . . .4-9
4.2.7 EMI Control/Status Register (ECSR). . . . . . . . . . . . . . . .4-10
4.2.7.1 EMI Data Bus Width (EBW)—Bit 0 . . . . . . . . . . . . . . .4-10
4.2.7.2 EMI Word Length (EWL[2:0])—Bits 16,2, and 1 . . . . .4-11
4.2.7.3 EMI Addressing Mode (EAM[3:0])—Bits 6–3 . . . . . . .4-12
4.2.7.4 EMI Increment EBAR After Read (EINR)—Bit 7. . . . .4-16
4.2.7.5 EMI Increment EBAR After Write (EINW)—Bit 8 . . . .4-16
4.2.7.6 EMI Interrupt Select (EIS[1:0])—Bits 9–10 . . . . . . . . .4-17
4.2.7.7 EMI Memory-Wrap Interrupt Enable
(EMWIE)—Bit 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17
4.2.7.8 EMI Data Write Register Empty (EDWE)—Bit 12. . . .4-18
4.2.7.9 EMI Data Read Register Full (EDRF)—Bit 13 . . . . . .4-18
4.2.7.10 EMI Data Register Buffer and Data Read Register
Full (EBDF)—Bit 14. . . . . . . . . . . . . . . . . . . . . . . . . . .4-18
4.2.7.11 EMI Busy (EBSY)—Bit 15. . . . . . . . . . . . . . . . . . . . . .4-19
4.2.7.12 EMI Read Trigger Select (ERTS)—Bit 17. . . . . . . . . .4-19
4.2.7.13 EMI DRAM Memory Timing (EDTM)—Bit 18 . . . . . . .4-19
4.2.7.14 EMI SRAM Memory Timing
(ESTM[3:0])— Bits 19–22. . . . . . . . . . . . . . . . . . . . . .4-20
4.2.7.15 EMI Enable (EME)—Bit 23 . . . . . . . . . . . . . . . . . . . . .4-21
4.2.8 EMI Refresh Control Register (ERCR) . . . . . . . . . . . . . .4-21
4.2.8.1 EMI Refresh Clock Divider (ECD[7:0])—Bits 0–7 . . . .4-22
4.2.8.2 ERCR Reserved Bits—Bits 8–17, 21 . . . . . . . . . . . . .4-22
4.2.8.3 EMI Refresh Clock Prescaler
(EPS[1:0])—Bits 18–19. . . . . . . . . . . . . . . . . . . . . . . .4-22
4.2.8.4 EMI One-Shot Refresh (EOSR)—Bit 20 . . . . . . . . . . .4-22

vi DSP56009User’sManual MOTOROLA
4.2.8.5 EMI Refresh Enable when Debugging (ERED)—Bit 22. . .
4-22
4.2.8.6 ERCR Refresh Enable (EREF)—Bit 23 . . . . . . . . . . . 4-23
4.3 EMI ADDRESS GENERATION. . . . . . . . . . . . . . . . . . . . . . 4-23
4.3.1 SRAM Absolute Addressing . . . . . . . . . . . . . . . . . . . . . . 4-24
4.3.2 SRAM Relative Addressing. . . . . . . . . . . . . . . . . . . . . . . 4-25
4.3.3 DRAM Relative Addressing. . . . . . . . . . . . . . . . . . . . . . . 4-27
4.3.4 DRAM Absolute Addressing . . . . . . . . . . . . . . . . . . . . . . 4-30
4.4 DRAM REFRESH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.4.1 DRAM Refresh Without Using The Internal Refresh
Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
4.4.2 DRAM Refresh OnCE‰ Port Debug Mode
Consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32
4.4.3 Using The Internal Refresh Timer. . . . . . . . . . . . . . . . . . 4-33
4.4.3.1 “On Line” Refresh. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33
4.4.3.2 “Off Line” Refresh. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34
4.4.4 Software Controlled Refresh. . . . . . . . . . . . . . . . . . . . . . 4-34
4.4.5 DRAM Refresh Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35
4.5 EMI OPERATING CONSIDERATIONS. . . . . . . . . . . . . . . . 4-38
4.5.1 EMI Triggering and Pipelining. . . . . . . . . . . . . . . . . . . . . 4-38
4.5.2 Read Data Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-40
4.5.3 Write-Data Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43
4.5.4 EMI Operation During Stop. . . . . . . . . . . . . . . . . . . . . . . 4-45
4.5.5 EMI Operation During Wait. . . . . . . . . . . . . . . . . . . . . . . 4-45
4.6 DATA-DELAY STRUCTURE. . . . . . . . . . . . . . . . . . . . . . . . 4-46
4.7 EMI-TO-MEMORY CONNECTION . . . . . . . . . . . . . . . . . . . 4-48
4.8 EMI TIMING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50
4.8.1 Timing Diagrams for DRAM Addressing Modes . . . . . . . 4-51
4.8.1.1 Fast Timing Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-52
4.8.1.2 Slow Timing Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58
4.8.2 Timing Diagrams for SRAM Addressing Modes . . . . . . . 4-64
SECTION 5 SERIAL HOST INTERFACE. . . . . . . . . . . . . . . . . . 5-1
5.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.2 SERIAL HOST INTERFACE INTERNAL ARCHITECTURE . 5-4
5.2.1 SHI Clock Generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

MOTOROLA DSP56009User’s Manual vii
5.3 SERIAL HOST INTERFACE PROGRAMMING MODEL . . . .5-5
5.3.1 SHI Input/Output Shift Register (IOSR)—Host Side . . . . .5-8
5.3.2 SHI Host Transmit Data Register (HTX)—DSP Side. . . . . 5-8
5.3.3 SHI Host Receive Data FIFO (HRX)—DSP Side . . . . . . .5-9
5.3.4 SHI Slave Address Register (HSAR)—DSP Side . . . . . . . 5-9
5.3.4.1 HSAR Reserved Bits—Bits 17–0,19. . . . . . . . . . . . . . .5-9
5.3.4.2 HSAR I2C Slave Address
(HA[6:3], HA1)—Bits 23–20,18. . . . . . . . . . . . . . . . . . .5-9
5.3.5 SHI Clock Control Register (HCKR)—DSP Side. . . . . . . .5-9
5.3.5.1 Clock Phase and Polarity
(CPHA and CPOL)—Bits 1–0 . . . . . . . . . . . . . . . . . . .5-10
5.3.5.2 HCKR Prescaler Rate Select (HRS)—Bit 2 . . . . . . . .5-11
5.3.5.3 HCKR Divider Modulus Select
(HDM[5:0])—Bits 8–3 . . . . . . . . . . . . . . . . . . . . . . . . .5-12
5.3.5.4 HCKR Reserved Bits—Bits 23–14, 11–9 . . . . . . . . . .5-12
5.3.5.5 HCKR Filter Mode (HFM[1:0]) — Bits 13–12 . . . . . . .5-12
5.3.6 SHI Control/Status Register (HCSR)—DSP Side . . . . . .5-13
5.3.6.1 HCSR Host Enable (HEN)—Bit 0 . . . . . . . . . . . . . . . .5-13
5.3.6.2 HCSR I2C/SPI Selection (HI2C)—Bit 1. . . . . . . . . . . .5-13
5.3.6.3 HCSR Serial Host Interface Mode
(HM[1:0])—Bits 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
5.3.6.4 HCSR Reserved Bits—Bits 23, 18, 16, and 4. . . . . . .5-14
5.3.6.5 HCSR FIFO-Enable Control (HFIFO)—Bit 5. . . . . . . .5-14
5.3.6.6 HCSR Master Mode (HMST)—Bit 6 . . . . . . . . . . . . . .5-14
5.3.6.7 HCSR Host-Request Enable
(HRQE[1:0])—Bits 8–7 . . . . . . . . . . . . . . . . . . . . . . . .5-15
5.3.6.8 HCSR Idle (HIDLE)—Bit 9 . . . . . . . . . . . . . . . . . . . . .5-15
5.3.6.9 HCSR Bus-Error Interrupt Enable (HBIE)—Bit 10 . . .5-16
5.3.6.10 HCSR Transmit-Interrupt Enable (HTIE)—Bit 11 . . . .5-16
5.3.6.11 HCSR Receive Interrupt Enable
(HRIE[1:0])—Bits 13–12 . . . . . . . . . . . . . . . . . . . . . . .5-16
5.3.6.12 HCSR Host Transmit Underrun Error
(HTUE)—Bit 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-17
5.3.6.13 HCSR Host Transmit Data Empty (HTDE)—Bit 15. . .5-17
5.3.6.14 Host Receive FIFO Not Empty (HRNE)—Bit 17 . . . . .5-18
5.3.6.15 Host Receive FIFO Full (HRFF)—Bit 19. . . . . . . . . . .5-18

viii DSP56009User’sManual MOTOROLA
5.3.6.16 Host Receive Overrun Error (HROE)—Bit 20 . . . . . . 5-18
5.3.6.17 Host Bus Error (HBER)—Bit 21 . . . . . . . . . . . . . . . . . 5-18
5.3.6.18 HCSR Host Busy (HBUSY)—Bit 22 . . . . . . . . . . . . . . 5-19
5.4 CHARACTERISTICS OF THE SPI BUS . . . . . . . . . . . . . . . 5-19
5.4.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
5.5 CHARACTERISTICS OF THE I2C BUS . . . . . . . . . . . . . . . 5-20
5.5.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
5.5.2 I2C Data Transfer Formats . . . . . . . . . . . . . . . . . . . . . . . 5-22
5.6 SHI PROGRAMMING CONSIDERATIONS . . . . . . . . . . . . 5-23
5.6.1 SPI Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
5.6.2 SPI Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
5.6.3 I2C Slave Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
5.6.3.1 Receive Data in I2C Slave Mode . . . . . . . . . . . . . . . . 5-26
5.6.3.2 Transmit Data In I2C Slave Mode. . . . . . . . . . . . . . . . 5-27
5.6.4 I2C Master Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
5.6.4.1 Receive Data in I2C Master Mode . . . . . . . . . . . . . . . 5-29
5.6.4.2 Transmit Data In I2C Master Mode. . . . . . . . . . . . . . . 5-30
5.6.5 SHI Operation During Stop . . . . . . . . . . . . . . . . . . . . . . . 5-31
SECTION 6 SERIAL AUDIO INTERFACE . . . . . . . . . . . . . . . . . 6-1
6.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
6.2 SERIAL AUDIO INTERFACE INTERNAL ARCHITECTURE 6-4
6.2.1 Baud-Rate Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
6.2.2 Receive Section Overview . . . . . . . . . . . . . . . . . . . . . . . . 6-5
6.2.3 SAI Transmit Section Overview . . . . . . . . . . . . . . . . . . . . 6-6
6.3 SERIAL AUDIO INTERFACE PROGRAMMING MODEL . . . 6-8
6.3.1 Baud Rate Control Register (BRC). . . . . . . . . . . . . . . . . . 6-9
6.3.1.1 Prescale Modulus select (PM[7:0])—Bits 7–0 . . . . . . 6-10
6.3.1.2 Prescaler Range (PSR)—Bit 8. . . . . . . . . . . . . . . . . . 6-10
6.3.1.3 BRC Reserved Bits—Bits 15–9 . . . . . . . . . . . . . . . . . 6-10
6.3.2 Receiver Control/Status Register (RCS). . . . . . . . . . . . . 6-10
6.3.2.1 RCS Receiver 0 Enable (R0EN)—Bit 0 . . . . . . . . . . . 6-10
6.3.2.2 RCS Receiver 1 Enable (R1EN)—Bit 1 . . . . . . . . . . . 6-11
6.3.2.3 RCS Reserved Bit—Bits 13 and 2 . . . . . . . . . . . . . . . 6-11
6.3.2.4 RCS Receiver Master (RMST)—Bit 3 . . . . . . . . . . . . 6-11

MOTOROLA DSP56009User’s Manual ix
6.3.2.5 RCS Receiver Word Length Control
(RWL[1:0])—Bits 4 and 5 . . . . . . . . . . . . . . . . . . . . . .6-11
6.3.2.6 RCS Receiver Data Shift Direction (RDIR)—Bit 6 . . .6-12
6.3.2.7 RCS Receiver Left Right Selection (RLRS)—Bit 7 . . .6-12
6.3.2.8 RCS Receiver Clock Polarity (RCKP)—Bit 8 . . . . . . .6-13
6.3.2.9 RCS Receiver Relative Timing (RREL)—Bit 9 . . . . . .6-13
6.3.2.10 RCS Receiver Data Word Truncation
(RDWT)—Bit 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-14
6.3.2.11 RCS Receiver Interrupt Enable (RXIE)—Bit 11 . . . . .6-15
6.3.2.12 RCS Receiver Interrupt Location (RXIL)—Bit 12 . . . .6-15
6.3.2.13 RCS Receiver Left Data Full (RLDF)—Bit 14 . . . . . . .6-16
6.3.2.14 RCS Receiver Right Data Full (RRDF)—Bit 15 . . . . .6-16
6.3.3 SAI Receive Data Registers (RX0 and RX1). . . . . . . . . .6-17
6.3.4 Transmitter Control/Status Register (TCS) . . . . . . . . . . .6-17
6.3.4.1 TCS Transmitter 0 Enable (T0EN)—Bit 0. . . . . . . . . .6-17
6.3.4.2 TCS Transmitter 1 Enable (T1EN)—Bit 1. . . . . . . . . .6-17
6.3.4.3 TCS Transmitter 2 Enable (T2EN)—Bit 2. . . . . . . . . .6-18
6.3.4.4 TCS Transmitter Master (TMST)—Bit 3 . . . . . . . . . . .6-18
6.3.4.5 TCS Transmitter Word Length Control
(TWL[1:0])—Bits 4 & 5 . . . . . . . . . . . . . . . . . . . . . . . .6-18
6.3.4.6 TCS Transmitter Data Shift Direction (TDIR)—Bit 6. .6-18
6.3.4.7 TCS Transmitter Left Right Selection (TLRS)—Bit 7 .6-19
6.3.4.8 TCS Transmitter Clock Polarity (TCKP)—Bit 8. . . . . .6-19
6.3.4.9 TCS Transmitter Relative Timing (TREL)—Bit 9. . . . .6-20
6.3.4.10 TCS Transmitter Data Word Expansion
(TDWE)—Bit 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-20
6.3.4.11 TCS Transmitter Interrupt Enable (TXIE)—Bit 11. . . .6-21
6.3.4.12 TCS Transmitter Interrupt Location (TXIL)—Bit 12. . .6-22
6.3.4.13 TCS Reserved Bit—Bit 13. . . . . . . . . . . . . . . . . . . . . .6-22
6.3.4.14 TCS Transmitter Left Data Empty (TLDE)—Bit 14 . . .6-22
6.3.4.15 TCS Transmitter Right Data Empty (TRDE)—Bit 15. .6-23
6.3.5 SAI Transmit Data Registers (TX2, TX1 and TX0) . . . . .6-23
6.4 PROGRAMMING CONSIDERATIONS . . . . . . . . . . . . . . . .6-24
6.4.1 SAI Operation During Stop . . . . . . . . . . . . . . . . . . . . . . .6-24
6.4.2 Initiating a Transmit Session . . . . . . . . . . . . . . . . . . . . . .6-24

x DSP56009User’sManual MOTOROLA
6.4.3 Using a Single Interrupt to Service Both Receiver
and Transmitter Sections . . . . . . . . . . . . . . . . . . . . . . . . 6-24
6.4.4 SAI State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
SECTION 7 GENERAL PURPOSE INPUT/OUTPUT. . . . . . . . . 7-1
7.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.2 GPIO PROGRAMMING MODEL. . . . . . . . . . . . . . . . . . . . . . 7-3
7.3 GPIO REGISTER (GPIOR) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.3.1 GPIOR Data Bits (GD[3:0])—Bits 3–0. . . . . . . . . . . . . . . . 7-4
7.3.2 GPIOR Reserved Bits—Bits 4–7, 12–15, and 20–23 . . . . 7-4
7.3.3 GPIOR Data Direction Bits (GDD[3:0])—Bits 11–8. . . . . . 7-4
7.3.4 GPIOR Control Bits (GC[3:0])—Bits 19–16. . . . . . . . . . . . 7-4
APPENDIX A BOOTSTRAP ROM CONTENTS . . . . . . . . . . . . . . A-1
A.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
A.2 BOOTSTRAPPING THE DSP. . . . . . . . . . . . . . . . . . . . . . . . A-3
A.3 BOOTSTRAP PROGRAM LISTING . . . . . . . . . . . . . . . . . . . A-4
A.4 BOOTSTRAP FLOW CHART . . . . . . . . . . . . . . . . . . . . . . . . A-7
APPENDIX B PROGRAMMING REFERENCE . . . . . . . . . . . . . . . B-1
B.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
B.2 PERIPHERAL ADDRESSES. . . . . . . . . . . . . . . . . . . . . . . . . B-3
B.3 INTERRUPT ADDRESSES. . . . . . . . . . . . . . . . . . . . . . . . . . B-3
B.4 INTERRUPT PRIORITIES. . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
B.5 INSTRUCTION SET SUMMARY. . . . . . . . . . . . . . . . . . . . . . B-3
B.6 PROGRAMMING SHEETS . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
APPENDIX C APPLICATION EXAMPLES . . . . . . . . . . . . . . . . . . C-1
C.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-3
C.2 TYPICAL SYSTEM TOPOLOGY. . . . . . . . . . . . . . . . . . . . . . C-3
C.3 TYPICAL AUDIO APPLICATION. . . . . . . . . . . . . . . . . . . . . . C-4
C.4 PROGRAM OVERLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
C.5 SINGLE DELAY LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
C.6 EARLY REFLECTION FILTER . . . . . . . . . . . . . . . . . . . . . . . C-6
C.7 TWO CHANNEL COMB FILTER. . . . . . . . . . . . . . . . . . . . . .C-7
C.8 3-TAP FIR FILTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

MOTOROLA DSP56009User’s Manual xi
LIST OF FIGURES
Figure 1-1 DSP56009 Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Figure 2-1 DSP56009 SIgnals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 3-1 Memory Maps for PEA = 0, PEB = 0. . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 3-2 Memory Maps for PEA = 1, PEB = 0. . . . . . . . . . . . . . . . . . . . . . 3-6
Figure 3-3 Memory Maps for PEA = 0, PEB = 1. . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 3-4 Memory Maps for PEA = 1, PEB = 1. . . . . . . . . . . . . . . . . . . . . . 3-7
Figure 3-5 Operating Mode Register (OMR). . . . . . . . . . . . . . . . . . . . . . . . 3-11
Figure 3-6 Interrupt Priority Register (Address X:$FFFF). . . . . . . . . . . . . . 3-14
Figure 3-7 PLL Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Figure 4-1 EMI Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-2 EMI Control/Status Register (ECSR). . . . . . . . . . . . . . . . . . . . . . 4-8
Figure 4-3 EMI Refresh Control Register (ERCR) . . . . . . . . . . . . . . . . . . . 4-21
Figure 4-4 EMI Address Generation Block Diagram. . . . . . . . . . . . . . . . . . 4-23
Figure 4-5 Refresh Timer Functional Diagram.. . . . . . . . . . . . . . . . . . . . . . 4-33
Figure 4-6 Timing Diagram of a DRAM Refresh Cycle (Fast). . . . . . . . . . . 4-37
Figure 4-7 Timing Diagram Of a DRAM Refresh Cycle (Slow). . . . . . . . . . 4-37
Figure 4-8 EMI Pipeline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39
Figure 4-9 Illustration of the Data-Delay Structure . . . . . . . . . . . . . . . . . . . 4-46
Figure 4-10 DRAM for Data Delay Buffers and for SRAM for Bootstrap . . . 4-48
Figure 4-11 SRAM for Data Delay Buffers and for Bootstrap. . . . . . . . . . . . 4-49

xii DSP56009User’sManual MOTOROLA
Figure 4-12 Replacing DRAMs with SRAMs for Large Arrays. . . . . . . . . . . . 4-50
Figure 4-13 Fast Read or Write DRAM Access Timing—1 . . . . . . . . . . . . . . 4-52
Figure 4-14 Fast Read or Write DRAM Access Timing—2 . . . . . . . . . . . . . . 4-53
Figure 4-15 Fast Read or Write DRAM Access Timing—3 . . . . . . . . . . . . . . 4-54
Figure 4-16 Fast Read or Write DRAM Access Timing—4 . . . . . . . . . . . . . . 4-55
Figure 4-17 Fast Read or Write DRAM Access Timing—5 . . . . . . . . . . . . . . 4-56
Figure 4-18 Fast Read or Write DRAM Access Timing—6 . . . . . . . . . . . . . . 4-57
Figure 4-19 Slow Read or Write DRAM Access Timing—1. . . . . . . . . . . . . . 4-58
Figure 4-20 Slow Read or Write DRAM Access Timing—2. . . . . . . . . . . . . . 4-59
Figure 4-21 Slow Read or Write DRAM Access Timing—3. . . . . . . . . . . . . . 4-60
Figure 4-22 Slow Read or Write DRAM Access Timing—4. . . . . . . . . . . . . . 4-61
Figure 4-23 Slow Read or Write DRAM Access Timing—5. . . . . . . . . . . . . . 4-62
Figure 4-24 Slow Read or Write DRAM Access Timing—6. . . . . . . . . . . . . . 4-63
Figure 4-25 SRAM Read/Write Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64
Figure 5-1 Serial Host Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . 5-4
Figure 5-2 SHI Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Figure 5-3 SHI Programming Model—Host Side. . . . . . . . . . . . . . . . . . . . . . 5-5
Figure 5-4 SHI Programming Model—DSP Side. . . . . . . . . . . . . . . . . . . . . . 5-6
Figure 5-5 SHI I/O Shift Register (IOSR). . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Figure 5-6 SPI Data-To-Clock Timing Diagram. . . . . . . . . . . . . . . . . . . . . . 5-10
Figure 5-7 I2C Bit Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
Figure 5-8 I2C Start and Stop Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21

MOTOROLA DSP56009User’s Manual xiii
Figure 5-9 Acknowledgment on the I2C Bus. . . . . . . . . . . . . . . . . . . . . . . . 5-22
Figure 5-10 I2C Bus Protocol For Host Write Cycle . . . . . . . . . . . . . . . . . . . 5-23
Figure 5-11 I2C Bus Protocol For Host Read Cycle . . . . . . . . . . . . . . . . . . . 5-23
Figure 6-1 SAI Baud-Rate Generator Block Diagram. . . . . . . . . . . . . . . . . . 6-4
Figure 6-2 SAI Receive Section Block Diagram . . . . . . . . . . . . . . . . . . . . . . 6-5
Figure 6-3 SAI Transmit Section Block Diagram . . . . . . . . . . . . . . . . . . . . . 6-7
Figure 6-4 SAI Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
Figure 6-5 Receiver Data Shift Direction (RDIR) Programming . . . . . . . . . 6-12
Figure 6-6 Receiver Left/Right Selection (RLRS) Programming. . . . . . . . . 6-12
Figure 6-7 Receiver Clock Polarity (RCKP) Programming . . . . . . . . . . . . . 6-13
Figure 6-8 Receiver Relative Timing (RREL) Programming. . . . . . . . . . . . 6-14
Figure 6-9 Receiver Data Word Truncation (RDWT) Programming . . . . . . 6-14
Figure 6-10 Transmitter Data Shift Direction (TDIR) Programming . . . . . . . 6-19
Figure 6-11 Transmitter Left/Right Selection (TLRS) Programming. . . . . . . 6-19
Figure 6-12 Transmitter Clock Polarity (TCKP) Programming . . . . . . . . . . . 6-20
Figure 6-13 Transmitter Relative Timing (TREL) Programming . . . . . . . . . . 6-20
Figure 6-14 Transmitter Data Word Expansion (TDWE) Programming . . . . 6-21
Figure 7-1 GPIO Control/Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Figure 7-2 GPIO Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

xiv DSP56009User’sManual MOTOROLA
LIST OF TABLES
Table 1-1 High True / Low True Signal Conventions . . . . . . . . . . . . . . . . . . 1-6
Table 1-2 Interrupt Starting Addresses and Sources. . . . . . . . . . . . . . . . . 1-13
Table 1-3 Internal Memory Configurations. . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Table 1-4 On-chip Peripheral Memory Map . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Table 2-1 DSP56009 Functional Group Signal Allocations . . . . . . . . . . . . . 2-3
Table 2-2 Power Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Table 2-3 Grounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Table 2-4 Clock and PLL Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Table 2-5 External Memory Interface (EMI) Signals. . . . . . . . . . . . . . . . . . . 2-7
Table 2-6 EMI Operating States. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Table 2-7 Interrupt and Mode Control Signals . . . . . . . . . . . . . . . . . . . . . . 2-10
Table 2-8 Serial Host Interface (SHI) signals. . . . . . . . . . . . . . . . . . . . . . . 2-14
Table 2-9 Serial Audio Interface (SAI) Receiver signals . . . . . . . . . . . . . . 2-18
Table 2-10 Serial Audio Interface (SAI) Transmitter signals . . . . . . . . . . . . 2-20
Table 2-11 General Purpose I/O (GPIO) Signals. . . . . . . . . . . . . . . . . . . . . 2-21
Table 2-12 On-Chip Emulation Port Signals. . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Table 3-1 Internal Memory Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Table 3-2 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Table 3-3 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Table 3-4 Interrupt Priorities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

MOTOROLA DSP56009User’s Manual xv
Table 3-5 Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Table 4-1 EMI Interrupt Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Table 4-2 EMI Internal Interrupt Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Table 4-3 EMI Memory Accesses and Locations Per Word . . . . . . . . . . . 4-10
Table 4-4 EMI Word Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Table 4-5 EMI Addressing Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Table 4-6 EMI Maximum SRAM Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
Table 4-7 EMI Maximum DRAM Size (Relative Addressing). . . . . . . . . . . 4-14
Table 4-8 EMI Maximum DRAM Size (Absolute Addressing) . . . . . . . . . . 4-15
Table 4-9 EMI Read/Write Interrupt Select . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Table 4-10 EMI DRAM Timing (clock cycles per word transfer) . . . . . . . . . 4-19
Table 4-11 EMI SRAM Timing (clock cycles per word transfer) . . . . . . . . . 4-20
Table 4-12 Relative Addressing Extension Bits. . . . . . . . . . . . . . . . . . . . . . 4-24
Table 4-13 Word Address to Physical Address Mapping for SRAM . . . . . . 4-26
Table 4-14 Word-Address-to-Physical-Address Mapping for DRAM. . . . . . 4-28
Table 4-15 Address Generation For DRAM Relative Addressing . . . . . . . . 4-29
Table 4-16 Word-to-Physical-Address Mapping for DRAM Absolute
Addressing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
Table 4-17 Typical DRAM Refresh Timing Requirements. . . . . . . . . . . . . . 4-35
Table 4-18 Continuous Refresh: Timings And Settings For EPS[1:0] and
ECD[7:0] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36
Table 4-19 Burst Refresh: Timings And Settings For EPS[1:0] and
ECD[7:0] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

xvi DSP56009User’sManual MOTOROLA
Table 4-20 Maximum DSP Clock Frequencies When Using DRAM . . . . . . 4-50
Table 4-21 Maximum DSP Clock Frequencies When Using SRAM. . . . . . . 4-51
Table 4-22 Maximum DSP Clock Frequencies When Using EPROM . . . . . 4-51
Table 5-1 SHI Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Table 5-2 SHI Internal Interrupt Priorities. . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
Table 5-3 SHI Noise Reduction Filter Mode. . . . . . . . . . . . . . . . . . . . . . . . 5-12
Table 5-4 SHI Data Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Table 5-5 HREQ Function In SHI Slave Modes . . . . . . . . . . . . . . . . . . . . . 5-15
Table 5-6 HCSR Receive Interrupt Enable Bits . . . . . . . . . . . . . . . . . . . . . 5-17
Table 6-1 SAI Interrupt Vector Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Table 6-2 SAI Internal Interrupt Priorities. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
Table 6-3 Receiver Word Length Control. . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
Table 6-4 Transmitter Word Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
Table 7-1 GPIO Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

MOTOROLA DSP56009User’s Manual 1-1
SECTION 1
OVERVIEW

1-2 DSP56009User’s Manual MOTOROLA
Overview
1.1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.2 DSP56009 FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.3 DSP56009 ARCHITECTURAL OVERVIEW . . . . . . . . . . . . . 1-8