Freescale Semiconductor DSP56366 User Manual

DSP56366 24-Bit Digital Signal

Processor

User Manual

Document Number: DSP56366UM

Rev. 4

08/2006

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www.freescale.com

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support@freescale.com

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Freescale Semiconductor Japan Ltd. Headquarters ARCO Tower 15F 1-8-1, Shimo-Meguro, Meguro-ku, Tokyo 153-0064, Japan 0120 191014 or +81 3 5437 9125 support.japan@freescale.com

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For Literature Requests Only:

Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-521-6274 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com

Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document.

Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part.

Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners.

1 DSP56366 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 DSP56300 Core Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

1.3 DSP56366 Audio Processor Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.4 DSP56300 Core Functional Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.4.1 Data ALU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.1.1 Data ALU Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.1.2 Multiplier-Accumulator (MAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.4.2 Address Generation Unit (AGU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.4.3 Program Control Unit (PCU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.4.4 Internal Buses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1.4.5 Direct Memory Access (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

1.4.6 PLL-based Clock Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4.7 JTAG TAP and OnCE Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4.8 On-Chip Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

1.4.9 Off-Chip Memory Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1.5 Peripheral Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

1.5.1 Host Interface (HDI08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

1.5.2 General Purpose Input/Output (GPIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

1.5.3 Triple Timer (TEC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

1.5.4 Enhanced Serial Audio Interface (ESAI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1.5.5 Enhanced Serial Audio Interface 1 (ESAI_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1.5.6 Serial Host Interface (SHI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

1.5.7 Digital Audio Transmitter (DAX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

2 Signal/Connection Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.1 Signal Groupings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.2 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2.3 Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2.4 Clock and PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2.5 External Memory Expansion Port (Port A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.5.1 External Address Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.5.2 External Data Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.5.3 External Bus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

2.6 Interrupt and Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

2.7 PARALLEL HOST INTERFACE (HDI08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

2.8 Serial Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

2.9 Enhanced Serial Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

2.10 Enhanced Serial Audio Interface_1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

2.11 SPDIF Transmitter Digital Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

2.12 Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

2.13 JTAG/OnCE Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

3 Memory Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-1

3.1 Data and Program Memory Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1.1 Reserved Memory Spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.1.2 Program ROM Area Reserved for Motorola Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.1.3 Bootstrap ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.1.4 Dynamic Memory Configuration Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

3.1.5 External Memory Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

3.2 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

4 Core Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2 Operating Mode Register (OMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

4.2.1 Asynchronous Bus Arbitration Enable (ABE) - Bit 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2.2 Address Attribute Priority Disable (APD) - Bit 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2.3 Address Tracing Enable (ATE) - Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.2.4 Patch Enable (PEN) - Bit 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

4.3 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

4.4 Interrupt Priority Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

4.5 DMA Request Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

4.6 PLL Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.6.1 PLL Multiplication Factor (MF0-MF11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.6.2 PLL Pre-Divider Factor (PD0-PD3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.6.3 Crystal Range Bit (XTLR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.6.4 XTAL Disable Bit (XTLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.7 Device Identification (ID) Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.8 JTAG Identification (ID) Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

4.9 JTAG Boundary Scan Register (BSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

5 General Purpose Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2 Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.1 Port B Signals and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.2 Port C Signals and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.3 Port D Signals and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

5.2.4 Port E Signals and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

5.2.5 Timer/Event Counter Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

6 Host Interface (HDI08) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2 HDI08 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.1 Interface - DSP side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

6.2.2 Interface - Host Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

6.3 HDI08 Host Port Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

6.4 HDI08 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

6.5 HDI08 – DSP-Side Programmer’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-2 Freescale Semiconductor

6.5.1 Host Receive Data Register (HORX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

6.5.2 Host Transmit Data Register (HOTX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

6.5.3 Host Control Register (HCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6.5.3.1 HCR Host Receive Interrupt Enable (HRIE) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6.5.3.2 HCR Host Transmit Interrupt Enable (HTIE) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6.5.3.3 HCR Host Command Interrupt Enable (HCIE) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

6.5.3.4 HCR Host Flags 2,3 (HF2,HF3) Bits 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

6.5.3.5 HCR Host DMA Mode Control Bits (HDM0, HDM1, HDM2) Bits 5-7 . . . . . . . . . . . 6-8

6.5.3.6 HCR Reserved Bits 8-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.4 Host Status Register (HSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.4.1 HSR Host Receive Data Full (HRDF) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.4.2 HSR Host Transmit Data Empty (HTDE) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.4.3 HSR Host Command Pending (HCP) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

6.5.4.4 HSR Host Flags 0,1 (HF0,HF1) Bits 3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

6.5.4.5 HSR Reserved Bits 5-6, 8-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

6.5.4.6 HSR DMA Status (DMA) Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

6.5.5 Host Base Address Register (HBAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

6.5.5.1 HBAR Base Address (BA[10:3]) Bits 0-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

6.5.5.2 HBAR Reserved Bits 8-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

6.5.6 Host Port Control Register (HPCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

6.5.6.1 HPCR Host GPIO Port Enable (HGEN) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

6.5.6.2 HPCR Host Address Line 8 Enable (HA8EN) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.3 HPCR Host Address Line 9 Enable (HA9EN) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.4 HPCR Host Chip Select Enable (HCSEN) Bit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.5 HPCR Host Request Enable (HREN) Bit 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.6 HPCR Host Acknowledge Enable (HAEN) Bit 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.7 HPCR Host Enable (HEN) Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.8 HPCR Reserved Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

6.5.6.9 HPCR Host Request Open Drain (HROD) Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6.5.6.10 HPCR Host Data Strobe Polarity (HDSP) Bit 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6.5.6.11 HPCR Host Address Strobe Polarity (HASP) Bit 10 . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6.5.6.12 HPCR Host Multiplexed bus (HMUX) Bit 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6.5.6.13 HPCR Host Dual Data Strobe (HDDS) Bit 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

6.5.6.14 HPCR Host Chip Select Polarity (HCSP) Bit 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

6.5.6.15 HPCR Host Request Polarity (HRP) Bit 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

6.5.6.16 HPCR Host Acknowledge Polarity (HAP) Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

6.5.7 Data direction register (HDDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

6.5.8 Host Data Register (HDR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6.5.9 DSP-Side Registers After Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

6.5.10 Host Interface DSP Core Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

6.6 HDI08 – External Host Programmer’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

6.6.1 Interface Control Register (ICR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

6.6.1.1 ICR Receive Request Enable (RREQ) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

6.6.1.2 ICR Transmit Request Enable (TREQ) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

6.6.1.3 ICR Double Host Request (HDRQ) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-3

6.6.1.4 ICR Host Flag 0 (HF0) Bit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

6.6.1.5 ICR Host Flag 1 (HF1) Bit 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

6.6.1.6 ICR Host Little Endian (HLEND) Bit 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

6.6.1.7 ICR Initialize Bit (INIT) Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

6.6.2 Command Vector Register (CVR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

6.6.2.1 CVR Host Vector (HV[6:0]) Bits 0–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

6.6.2.2 CVR Host Command Bit (HC) Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

6.6.3 Interface Status Register (ISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

6.6.3.1 ISR Receive Data Register Full (RXDF) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

6.6.3.2 ISR Transmit Data Register Empty (TXDE) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

6.6.3.3 ISR Transmitter Ready (TRDY) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6.6.3.4 ISR Host Flag 2 (HF2) Bit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6.6.3.5 ISR Host Flag 3 (HF3) Bit 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6.6.3.6 ISR Reserved Bits 5-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6.6.3.7 ISR Host Request (HREQ) Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

6.6.4 Interrupt Vector Register (IVR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

6.6.5 Receive Byte Registers (RXH:RXM:RXL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

6.6.6 Transmit Byte Registers (TXH:TXM:TXL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

6.6.7 Host Side Registers After Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

6.6.8 General Purpose INPUT/OUTPUT (GPIO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

6.7 Servicing The Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

6.7.1 HDI08 Host Processor Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

6.7.2 Polling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28

6.7.3 Servicing Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29

7 Serial Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1

7.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

7.2 Serial Host Interface Internal Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.3 SHI Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

7.4 Serial Host Interface Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

7.4.1 SHI Input/Output Shift Register (IOSR)—Host Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

7.4.2 SHI Host Transmit Data Register (HTX)—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7.4.3 SHI Host Receive Data FIFO (HRX)—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7.4.4 SHI Slave Address Register (HSAR)—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

7.4.4.1 HSAR Reserved Bits—Bits 19, 17–0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

7.4.4.2 HSAR I

7.4.5 SHI Clock Control Register (HCKR)—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

7.4.5.1 Clock Phase and Polarity (CPHA and CPOL)—Bits 1–0 . . . . . . . . . . . . . . . . . . . . . . . 7-7

7.4.5.2 HCKR Prescaler Rate Select (HRS)—Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.4.5.3 HCKR Divider Modulus Select (HDM[7:0])—Bits 10–3 . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.4.5.4 HCKR Reserved Bits—Bits 23–14, 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.4.5.5 HCKR Filter Mode (HFM[1:0]) — Bits 13–12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

7.4.6 SHI Control/Status Register (HCSR)—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

7.4.6.1 HCSR Host Enable (HEN)—Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

7.4.6.1.1 SHI Individual Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

C Slave Address (HA[6:3], HA1)—Bits 23–20,18 . . . . . . . . . . . . . . . . . . . . . 7-7

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-4 Freescale Semiconductor

7.4.6.2 HCSR I2C/SPI Selection (HI2C)—Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

7.4.6.3 HCSR Serial Host Interface Mode (HM[1:0])—Bits 3–2 . . . . . . . . . . . . . . . . . . . . . . 7-11

7.4.6.4 HCSR I2C Clock Freeze (HCKFR)—Bit 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

7.4.6.5 HCSR FIFO-Enable Control (HFIFO)—Bit 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7.4.6.6 HCSR Master Mode (HMST)—Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7.4.6.7 HCSR Host-Request Enable (HRQE[1:0])—Bits 8–7 . . . . . . . . . . . . . . . . . . . . . . . . 7-12

7.4.6.8 HCSR Idle (HIDLE)—Bit 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

7.4.6.9 HCSR Bus-Error Interrupt Enable (HBIE)—Bit 10 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

7.4.6.10 HCSR Transmit-Interrupt Enable (HTIE)—Bit 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13

7.4.6.11 HCSR Receive Interrupt Enable (HRIE[1:0])—Bits 13–12 . . . . . . . . . . . . . . . . . . . . 7-14

7.4.6.12 HCSR Host Transmit Underrun Error (HTUE)—Bit 14 . . . . . . . . . . . . . . . . . . . . . . . 7-14

7.4.6.13 HCSR Host Transmit Data Empty (HTDE)—Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.4.6.14 HCSR Reserved Bits—Bits 23, 18 and 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.4.6.15 Host Receive FIFO Not Empty (HRNE)—Bit 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.4.6.16 Host Receive FIFO Full (HRFF)—Bit 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.4.6.17 Host Receive Overrun Error (HROE)—Bit 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15

7.4.6.18 Host Bus Error (HBER)—Bit 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.4.6.19 HCSR Host Busy (HBUSY)—Bit 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.5 Characteristics Of The SPI Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.6 Characteristics Of The I2C Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

7.6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

7.6.2 I2C Data Transfer Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

7.7 SHI Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

7.7.1 SPI Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

7.7.2 SPI Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

7.7.3 I2C Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

7.7.3.1 Receive Data in I2C Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21

7.7.3.2 Transmit Data In I2C Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

7.7.4 I2C Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23

7.7.4.1 Receive Data in I2C Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24

7.7.4.2 Transmit Data In I2C Master Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24

7.7.5 SHI Operation During DSP Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25

8 Enhanced Serial AUDIO Interface (ESAI) . . . . . . . . . . . . . . . . . . . . . . . . . . .8-1

8..1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

8.2 ESAI Data and Control Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

8.2.1 Serial Transmit 0 Data Pin (SDO0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

8.2.2 Serial Transmit 1 Data Pin (SDO1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

8.2.3 Serial Transmit 2/Receive 3 Data Pin (SDO2/SDI3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

8.2.4 Serial Transmit 3/Receive 2 Data Pin (SDO3/SDI2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

8.2.5 Serial Transmit 4/Receive 1 Data Pin (SDO4/SDI1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

8.2.6 Serial Transmit 5/Receive 0 Data Pin (SDO5/SDI0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

8.2.7 Receiver Serial Clock (SCKR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V4

8.2.8 Transmitter Serial Clock (SCKT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

8.2.9 Frame Sync for Receiver (FSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-5

8.2.10 Frame Sync for Transmitter (FST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.2.11 High Frequency Clock for Transmitter (HCKT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.2.12 High Frequency Clock for Receiver (HCKR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.3 ESAI Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-7

8.3.1 ESAI Transmitter Clock Control Register (TCCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

8.3.1.1 TCCR Transmit Prescale Modulus Select (TPM7–TPM0) - Bits 0–7 . . . . . . . . . . . . . 8-8

8.3.1.2 TCCR Transmit Prescaler Range (TPSR) - Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

8.3.1.3 TCCR Tx Frame Rate Divider Control (TDC4–TDC0) - Bits 9–13 . . . . . . . . . . . . . . 8-10

8.3.1.4 TCCR Tx High Frequency Clock Divider (TFP3-TFP0) - Bits 14–17 . . . . . . . . . . . . 8-11

8.3.1.5 TCCR Transmit Clock Polarity (TCKP) - Bit 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

8.3.1.6 TCCR Transmit Frame Sync Polarity (TFSP) - Bit 19 . . . . . . . . . . . . . . . . . . . . . . . . 8-12

8.3.1.7 TCCR Transmit High Frequency Clock Polarity (THCKP) - Bit 20 . . . . . . . . . . . . . 8-12

8.3.1.8 TCCR Transmit Clock Source Direction (TCKD) - Bit 21 . . . . . . . . . . . . . . . . . . . . . 8-12

8.3.1.9 TCCR Transmit Frame Sync Signal Direction (TFSD) - Bit 22 . . . . . . . . . . . . . . . . . 8-12

8.3.1.10 TCCR Transmit High Frequency Clock Direction (THCKD) - Bit 23 . . . . . . . . . . . . 8-12

8.3.2 ESAI Transmit Control Register (TCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12

8.3.2.1 TCR ESAI Transmit 0 Enable (TE0) - Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

8.3.2.2 TCR ESAI Transmit 1 Enable (TE1) - Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

8.3.2.3 TCR ESAI Transmit 2 Enable (TE2) - Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

8.3.2.4 TCR ESAI Transmit 3 Enable (TE3) - Bit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

8.3.2.5 TCR ESAI Transmit 4 Enable (TE4) - Bit 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14

8.3.2.6 TCR ESAI Transmit 5 Enable (TE5) - Bit 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

8.3.2.7 TCR Transmit Shift Direction (TSHFD) - Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15

8.3.2.8 TCR Transmit Word Alignment Control (TWA) - Bit 7 . . . . . . . . . . . . . . . . . . . . . . . 8-15

8.3.2.9 TCR Transmit Network Mode Control (TMOD1-TMOD0) - Bits 8-9 . . . . . . . . . . . . 8-16

8.3.2.10 TCR Tx Slot and Word Length Select (TSWS4-TSWS0) - Bits 10-14 . . . . . . . . . . . 8-18

8.3.2.11 TCR Transmit Frame Sync Length (TFSL) - Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19

8.3.2.12 TCR Transmit Frame Sync Relative Timing (TFSR) - Bit 16 . . . . . . . . . . . . . . . . . . 8-21

8.3.2.13 TCR Transmit Zero Padding Control (PADC) - Bit 17 . . . . . . . . . . . . . . . . . . . . . . . . 8-21

8.3.2.14 TCR Reserved Bit - Bits 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21

8.3.2.15 TCR Transmit Section Personal Reset (TPR) - Bit 19 . . . . . . . . . . . . . . . . . . . . . . . . 8-21

8.3.2.16 TCR Transmit Exception Interrupt Enable (TEIE) - Bit 20 . . . . . . . . . . . . . . . . . . . . 8-21

8.3.2.17 TCR Transmit Even Slot Data Interrupt Enable (TEDIE) - Bit 21 . . . . . . . . . . . . . . . 8-22

8.3.2.18 TCR Transmit Interrupt Enable (TIE) - Bit 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22

8.3.2.19 TCR Transmit Last Slot Interrupt Enable (TLIE) - Bit 23 . . . . . . . . . . . . . . . . . . . . . 8-22

8.3.3 ESAI Receive Clock Control Register (RCCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22

8.3.3.1 RCCR Receiver Prescale Modulus Select (RPM7–RPM0) - Bits 7–0 . . . . . . . . . . . . 8-23

8.3.3.2 RCCR Receiver Prescaler Range (RPSR) - Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23

8.3.3.3 RCCR Rx Frame Rate Divider Control (RDC4–RDC0) - Bits 9–13 . . . . . . . . . . . . . 8-23

8.3.3.4 RCCR Rx High Frequency Clock Divider (RFP3-RFP0) - Bits 14-17 . . . . . . . . . . . . 8-23

8.3.3.5 RCCR Receiver Clock Polarity (RCKP) - Bit 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24

8.3.3.6 RCCR Receiver Frame Sync Polarity (RFSP) - Bit 19 . . . . . . . . . . . . . . . . . . . . . . . . 8-24

8.3.3.7 RCCR Receiver High Frequency Clock Polarity (RHCKP) - Bit 20 . . . . . . . . . . . . . 8-24

8.3.3.8 RCCR Receiver Clock Source Direction (RCKD) - Bit 21 . . . . . . . . . . . . . . . . . . . . . 8-24

8.3.3.9 RCCR Receiver Frame Sync Signal Direction (RFSD) - Bit 22 . . . . . . . . . . . . . . . . . 8-25

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-6 Freescale Semiconductor

8.3.3.10 RCCR Receiver High Frequency Clock Direction (RHCKD) - Bit 23 . . . . . . . . . . . . 8-26

8.3.4 ESAI Receive Control Register (RCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26

8.3.4.1 RCR ESAI Receiver 0 Enable (RE0) - Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.2 RCR ESAI Receiver 1 Enable (RE1) - Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.3 RCR ESAI Receiver 2 Enable (RE2) - Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.4 RCR ESAI Receiver 3 Enable (RE3) - Bit 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.5 RCR Reserved Bits - Bits 4-5, 17-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.6 RCR Receiver Shift Direction (RSHFD) - Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27

8.3.4.7 RCR Receiver Word Alignment Control (RWA) - Bit 7 . . . . . . . . . . . . . . . . . . . . . . . 8-28

8.3.4.8 RCR Receiver Network Mode Control (RMOD1-RMOD0) - Bits 8-9 . . . . . . . . . . . . 8-28

8.3.4.9 RCR Receiver Slot and Word Select (RSWS4-RSWS0) - Bits 10-14 . . . . . . . . . . . . 8-28

8.3.4.10 RCR Receiver Frame Sync Length (RFSL) - Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30

8.3.4.11 RCR Receiver Frame Sync Relative Timing (RFSR) - Bit 16 . . . . . . . . . . . . . . . . . . 8-30

8.3.4.12 RCR Receiver Section Personal Reset (RPR) - Bit 19 . . . . . . . . . . . . . . . . . . . . . . . . 8-30

8.3.4.13 RCR Receive Exception Interrupt Enable (REIE) - Bit 20 . . . . . . . . . . . . . . . . . . . . . 8-31

8.3.4.14 RCR Receive Even Slot Data Interrupt Enable (REDIE) - Bit 21 . . . . . . . . . . . . . . . . 8-31

8.3.4.15 RCR Receive Interrupt Enable (RIE) - Bit 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31

8.3.4.16 RCR Receive Last Slot Interrupt Enable (RLIE) - Bit 23 . . . . . . . . . . . . . . . . . . . . . . 8-31

8.3.5 ESAI Common Control Register (SAICR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-31

8.3.5.1 SAICR Serial Output Flag 0 (OF0) - Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

8.3.5.2 SAICR Serial Output Flag 1 (OF1) - Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

8.3.5.3 SAICR Serial Output Flag 2 (OF2) - Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

8.3.5.4 SAICR Reserved Bits - Bits 3-5, 9-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

8.3.5.5 SAICR Synchronous Mode Selection (SYN) - Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

8.3.5.6 SAICR Transmit External Buffer Enable (TEBE) - Bit 7 . . . . . . . . . . . . . . . . . . . . . . 8-33

8.3.5.7 SAICR Alignment Control (ALC) - Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-33

8.3.6 ESAI Status Register (SAISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34

8.3.6.1 SAISR Serial Input Flag 0 (IF0) - Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

8.3.6.2 SAISR Serial Input Flag 1 (IF1) - Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

8.3.6.3 SAISR Serial Input Flag 2 (IF2) - Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

8.3.6.4 SAISR Reserved Bits - Bits 3-5, 11-12, 18-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

8.3.6.5 SAISR Receive Frame Sync Flag (RFS) - Bit 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

8.3.6.6 SAISR Receiver Overrun Error Flag (ROE) - Bit 7 . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36

8.3.6.7 SAISR Receive Data Register Full (RDF) - Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36

8.3.6.8 SAISR Receive Even-Data Register Full (REDF) - Bit 9 . . . . . . . . . . . . . . . . . . . . . . 8-36

8.3.6.9 SAISR Receive Odd-Data Register Full (RODF) - Bit 10 . . . . . . . . . . . . . . . . . . . . . 8-36

8.3.6.10 SAISR Transmit Frame Sync Flag (TFS) - Bit 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36

8.3.6.11 SAISR Transmit Underrun Error Flag (TUE) - Bit 14 . . . . . . . . . . . . . . . . . . . . . . . . 8-37

8.3.6.12 SAISR Transmit Data Register Empty (TDE) - Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . 8-37

8.3.6.13 SAISR Transmit Even-Data Register Empty (TEDE) - Bit 16 . . . . . . . . . . . . . . . . . . 8-37

8.3.6.14 SAISR Transmit Odd-Data Register Empty (TODE) - Bit 17 . . . . . . . . . . . . . . . . . . 8-37

8.3.7 ESAI Receive Shift Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

8.3.8 ESAI Receive Data Registers (RX3, RX2, RX1, RX0) . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

8.3.9 ESAI Transmit Shift Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

8.3.10 ESAI Transmit Data Registers (TX5, TX4, TX3, TX2,TX1,TX0) . . . . . . . . . . . . . . . . . . 8-40

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-7

8.3.11 ESAI Time Slot Register (TSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

8.3.12 Transmit Slot Mask Registers (TSMA, TSMB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40

8.3.13 Receive Slot Mask Registers (RSMA, RSMB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42

8.4 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43

8.4.1 ESAI After Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43

8.4.2 ESAI Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43

8.4.3 ESAI Interrupt Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-44

8.4.4 Operating Modes – Normal, Network, and On-Demand . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45

8.4.4.1 Normal/Network/On-Demand Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45

8.4.4.2 Synchronous/Asynchronous Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45

8.4.4.3 Frame Sync Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46

8.4.4.4 Shift Direction Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46

8.4.5 Serial I/O Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46

8.5 GPIO - Pins and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47

8.5.1 Port C Control Register (PCRC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47

8.5.2 Port C Direction Register (PRRC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47

8.5.3 Port C Data register (PDRC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48

8.6 ESAI Initialization Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49

8.6.1 Initializing the ESAI Using Individual Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49

8.6.2 Initializing Just the ESAI Transmitter Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49

8.6.3 Initializing Just the ESAI Receiver Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50

9 Enhanced Serial Audio Interface 1 (ESAI_1) . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

9.2 ESAI_1 Data and Control Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.1 Serial Transmit 0 Data Pin (SDO0_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.2 Serial Transmit 1 Data Pin (SDO1_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.3 Serial Transmit 2/Receive 3 Data Pin (SDO2_1/SDI3_1) . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.4 Serial Transmit 3/Receive 2 Data Pin (SDO3_1/SDI2_1) . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.5 Serial Transmit 4/Receive 1 Data Pin (SDO4_1/SDI1_1) . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3

9.2.6 Serial Transmit 5/Receive 0 Data Pin (SDO5_1/SDI0_1) . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.2.7 Receiver Serial Clock (SCKR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.2.8 Transmitter Serial Clock (SCKT_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.2.9 Frame Sync for Receiver (FSR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.2.10 Frame Sync for Transmitter (FST_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.3 ESAI_1 Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

9.3.1 ESAI_1 Multiplex Control Register (EMUXR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.3.2 ESAI_1 Transmitter Clock Control Register (TCCR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

9.3.2.1 TCCR_1 Tx High Freq. Clock Divider (TFP3-TFP0) - Bits 14–17 . . . . . . . . . . . . . . . 9-6

9.3.2.2 TCCR_1 Tx High Freq. Clock Polarity (THCKP) - Bit 20 . . . . . . . . . . . . . . . . . . . . . . 9-6

9.3.2.3 TCCR_1 Tx High Freq. Clock Direction (THCKD) - Bit 23 . . . . . . . . . . . . . . . . . . . . 9-6

9.3.3 ESAI_1 Transmit Control Register (TCR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8

9.3.4 ESAI_1 Receive Clock Control Register (RCCR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

9.3.4.1 RCCR_1 Rx High Freq. Clock Divider (RFP3-RFP0) - Bits 14–17 . . . . . . . . . . . . . . . 9-9

9.3.4.2 RCCR_1 Rx High Freq. Clock Polarity (RHCKP) - Bit 20 . . . . . . . . . . . . . . . . . . . . . 9-9

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-8 Freescale Semiconductor

9.3.4.3 RCCR_1 Rx High Freq. Clock Direction (RHCKD) - Bit 23 . . . . . . . . . . . . . . . . . . . . 9-9

9.3.5 ESAI_1 Receive Control Register (RCR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

9.3.6 ESAI_1 Common Control Register (SAICR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

9.3.7 ESAI_1 Status Register (SAISR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

9.3.8 ESAI_1 Receive Shift Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

9.3.9 ESAI_1 Receive Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

9.3.10 ESAI_1 Transmit Shift Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

9.3.11 ESAI_1 Transmit Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

9.3.12 ESAI_1 Time Slot Register (TSR_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

9.3.13 Transmit Slot Mask Registers (TSMA_1, TSMB_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

9.3.14 Receive Slot Mask Registers (RSMA_1, RSMB_1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

9.4 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

9.4.1 ESAI_1 After Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

9.5 GPIO - Pins and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

9.5.1 Port E Control Register (PCRE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

9.5.2 Port E Direction Register (PRRE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14

9.5.3 Port E Data register (PDRE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14

10 Digital Audio Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-1

10.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

10.2 DAX Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

10.3 DAX Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

10.4 DAX Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3

10.5 DAX Internal Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

10.5.1 DAX Audio Data Register (XADR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

10.5.2 DAX Audio Data Buffers (XADBUFA / XADBUFB) . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

10.5.3 DAX Audio Data Shift Register (XADSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

10.5.4 DAX Non-Audio Data Register (XNADR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

10.5.4.1 DAX Channel A Validity (XVA)—Bit 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-5

10.5.4.2 DAX Channel A User Data (XUA)—Bit 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.4.3 DAX Channel A Channel Status (XCA)—Bit 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.4.4 DAX Channel B Validity (XVB)—Bit 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.4.5 DAX Channel B User Data (XUB)—Bit 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.4.6 DAX Channel B Channel Status (XCB)—Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.4.7 XNADR Reserved Bits—Bits 0-9, 16–23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.5 DAX Non-Audio Data Buffer (XNADBUF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.6 DAX Control Register (XCTR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6

10.5.6.1 Audio Data Register Empty Interrupt Enable (XDIE)—Bit 0 . . . . . . . . . . . . . . . . . . . 10-7

10.5.6.2 Underrun Error Interrupt Enable (XUIE)—Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.6.3 Block Transferred Interrupt Enable (XBIE)—Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.6.4 DAX Clock Input Select (XCS[1:0])—Bits 3–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.6.5 DAX Start Block (XSB)—Bit 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.6.6 XCTR Reserved Bits—Bits 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.7 DAX Status Register (XSTR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

10.5.7.1 DAX Audio Data Register Empty (XADE)—Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-9

10.5.7.2 DAX Transmit Underrun Error Flag (XAUR)—Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

10.5.7.3 DAX Block Transfer Flag (XBLK)—Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

10.5.7.4 XSTR Reserved Bits—Bits 3–23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

10.5.8 DAX Parity Generator (PRTYG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

10.5.9 DAX Biphase Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

10.5.10 DAX Preamble Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

10.5.11 DAX Clock Multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

10.5.12 DAX State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

10.6 DAX Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

10.6.1 Initiating A Transmit Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

10.6.2 Audio Data Register Empty Interrupt Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

10.6.3 Block Transferred Interrupt Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11

10.6.4 DAX operation with DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11

10.6.5 DAX Operation During Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

10.7 GPIO (PORT D) - Pins and Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

10.7.1 Port D Control Register (PCRD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

10.7.2 Port D Direction Register (PRRD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13

10.7.3 Port D Data Register (PDRD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

11 Timer/ Event Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-1

11.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

11.2 Timer/Event Counter Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

11.2.1 Timer/Event Counter Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

11.2.2 Individual Timer Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

11.3 Timer/Event Counter Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3

11.3.1 Prescaler Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5

11.3.2 Timer Prescaler Load Register (TPLR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5

11.3.2.1 TPLR Prescaler Preload Value PL[20:0] Bits 20–0 . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5

11.3.2.2 TPLR Prescaler Source PS[1:0] Bits 22-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5

11.3.2.3 TPLR Reserved Bit 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.3 Timer Prescaler Count Register (TPCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.3.1 TPCR Prescaler Counter Value PC[20:0] Bits 20–0 . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.3.2 TPCR Reserved Bits 23–21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.4 Timer Control/Status Register (TCSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.4.1 TCSR Timer Enable (TE) Bit 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

11.3.4.2 TCSR Timer Overflow Interrupt Enable (TOIE) Bit 1 . . . . . . . . . . . . . . . . . . . . . . . . 11-7

11.3.4.3 TCSR Timer Compare Interrupt Enable (TCIE) Bit 2 . . . . . . . . . . . . . . . . . . . . . . . . 11-7

11.3.4.4 TCSR Timer Control (TC[3:0]) Bits 4–7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-7

11.3.4.5 TCSR Inverter (INV) Bit 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9

11.3.4.6 TCSR Timer Reload Mode (TRM) Bit 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10

11.3.4.7 TCSR Direction (DIR) Bit 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10

11.3.4.8 TCSR Data Input (DI) Bit 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10

11.3.4.9 TCSR Data Output (DO) Bit 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10

11.3.4.10 TCSR Prescaler Clock Enable (PCE) Bit 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-11

11.3.4.11 TCSR Timer Overflow Flag (TOF) Bit 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-11

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-10 Freescale Semiconductor

11.3.4.12 TCSR Timer Compare Flag (TCF) Bit 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-11

11.3.4.13 TCSR Reserved Bits (Bits 3, 10, 14, 16-19, 22, 23) . . . . . . . . . . . . . . . . . . . . . . . . . 11-11

11.3.5 Timer Load Register (TLR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12

11.3.6 Timer Compare Register (TCPR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12

11.3.7 Timer Count Register (TCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12

11.4 Timer Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12

11.4.1 Timer Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13

11.4.1.1 Timer GPIO (Mode 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-13

11.4.1.2 Timer Pulse (Mode 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14

11.4.1.3 Timer Toggle (Mode 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-14

11.4.1.4 Timer Event Counter (Mode 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-15

11.4.2 Signal Measurement Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-16

11.4.2.1 Measurement Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-16

11.4.2.2 Measurement Input Width (Mode 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-16

11.4.2.3 Measurement Input Period (Mode 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-17

11.4.2.4 Measurement Capture (Mode 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-17

11.4.3 Pulse Width Modulation (PWM, Mode 7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-18

11.4.4 Watchdog Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-19

11.4.4.1 Watchdog Pulse (Mode 9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-19

11.4.4.2 Watchdog Toggle (Mode 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-20

11.4.5 Reserved Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-20

11.4.6 Special Cases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-20

11.4.6.1 Timer Behavior during Wait . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-20

11.4.6.2 Timer Behavior during Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-21

11.4.7 DMA Trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-21

Appendix A Bootstrap ROM Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

A.1 DSP56366 Bootstrap Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

Appendix B Equates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Appendix C JTAG BSDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Appendix D Programmer’s Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.1 Peripheral Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.2 Interrupt Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.3 Interrupt Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.4 Host Interface Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.1.5 Programming Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.2 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

B.3 Interrupt Vector Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor TOC-11

B.4 Interrupt Source Priorities (within an IPL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-10

B.5 Host Interface—Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12

B.6 Programming Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-15

DSP56366 24-Bit Digital Signal Processor, Rev. 4

TOC-12 Freescale Semiconductor

List of Figures

Figure 1-1 DSP56366 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Figure 2-1 Signals Identified by Functional Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Figure 3-1 Memory Maps for MSW=(X,X), CE=0, MS=0, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Figure 3-2 Memory Maps for MSW=(X,X), CE=1, MS=0, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Figure 3-3 Memory Maps for MSW=(0,0), CE=0 MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-4 Memory Maps for MSW=(0,1), CE=0, MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Figure 3-5 Memory Maps for MSW=(1,0), CE=0, MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-6 Memory Maps for MSW=(0,0), CE=1, MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-7 Memory Maps for MSW=(0,1), CE=1, MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-8 Memory Maps for MSW=(1,0), CE=1, MS=1, SC=0 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Figure 3-9 Memory Maps for MSW=(X,X), CE=0, MS=0, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-10 Memory Maps for MSW=(X,X), CE=1, MS=0, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-11 Memory Maps for MSW=(0,0), CE=0, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-12 Memory Maps for MSW=(0,1), CE=0, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-13 Memory Maps for MSW=(1,0), CE=0, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Figure 3-14 Memory Maps for MSW=(0,0), CE=1, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Figure 3-15 Memory Maps for MSW=(0,1), CE=1, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 3-16 Memory Maps for MSW=(1,0), CE=1, MS=1, SC=1 . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Figure 4-1 Interrupt Priority Register P . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-2 Interrupt Priority Register C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 6-1 HDI08 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Figure 6-2 Host Control Register (HCR) (X:$FFFFC2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Figure 6-3 Host Status Register (HSR) (X:FFFFC3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Figure 6-4 Host Base Address Register (HBAR) (X:$FFFFC5) . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Figure 6-5 Self Chip Select logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Figure 6-6 Host Port Control Register (HPCR) (X:$FFFFC4) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Figure 6-7 Single strobe bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Figure 6-8 Dual strobes bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Figure 6-9 Host Data Direction Register (HDDR) (X:$FFFFC8) . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Figure 6-10 Host Data Register (HDR) (X:$FFFFC9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Figure 6-11 HSR-HCR Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18

Figure 6-12 Interface Control Register (ICR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20

Figure 6-13 Command Vector Register (CVR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

Figure 6-14 Interface Status Register (ISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24

Figure 6-15 Interrupt Vector Register (IVR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26

Figure 6-16 HDI08 Host Request Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29

Figure 7-1 Serial Host Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Figure 7-2 SHI Clock Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Figure 7-3 SHI Programming Model—Host Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor LOF-1

Figure 7-4 SHI Programming Model—DSP Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Figure 7-5 SHI I/O Shift Register (IOSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Figure 7-6 SPI Data-To-Clock Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Figure 7-7 I2C Bit Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Figure 7-8 I2C Start and Stop Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

Figure 7-9 Acknowledgment on the I2C Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Figure 7-10 I2C Bus Protocol For Host Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-18

Figure 7-11 I2C Bus Protocol For Host Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19

Figure 8-1 ESAI Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Figure 8-2 TCCR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8

Figure 8-3 ESAI Clock Generator Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Figure 8-4 ESAI Frame Sync Generator Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . 8-11

Figure 8-5 TCR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13

Figure 8-6 Normal and Network Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-17

Figure 8-7 Frame Length Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20

Figure 8-8 RCCR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-22

Figure 8-9 RCR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26

Figure 8-10 SAICR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32

Figure 8-11 SAICR SYN Bit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34

Figure 8-12 SAISR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35

Figure 8-13 ESAI Data Path Programming Model ([R/T]SHFD=0) . . . . . . . . . . . . . . . . . . . . . . . 8-38

Figure 8-14 ESAI Data Path Programming Model ([R/T]SHFD=1) . . . . . . . . . . . . . . . . . . . . . . . 8-39

Figure 8-15 TSMA Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-41

Figure 8-16 TSMB Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-41

Figure 8-17 RSMA Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42

Figure 8-18 RSMB Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42

Figure 8-19 PCRC Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48

Figure 8-20 PRRC Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48

Figure 8-21 PDRC Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-49

Figure 9-1 ESAI_1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2

Figure 9-2 EMUXR Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Figure 9-3 TCCR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Figure 9-4 ESAI_1 Clock Generator Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

Figure 9-5 ESAI_1 Frame Sync Generator Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . 9-8

Figure 9-6 TCR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8

Figure 9-7 RCCR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

Figure 9-8 RCR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

Figure 9-9 SAICR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10

Figure 9-10 SAISR_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-11

DSP56366 24-Bit Digital Signal Processor, Rev. 4

LOF-2 Freescale Semiconductor

Figure 9-11 TSMA_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

Figure 9-12 TSMB_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12

Figure 9-13 RSMA_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

Figure 9-14 RSMB_1 Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-13

Figure 9-15 PCRE Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14

Figure 9-16 PRRE Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14

Figure 9-17 PDRE Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-15

Figure 10-1 Digital Audio Transmitter (DAX) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2

Figure 10-2 DAX Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

Figure 10-3 DAX Relative Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8

Figure 10-4 Preamble sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

Figure 10-5 Clock Multiplexer Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10

Figure 10-6 Examples of data organization in memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12

Figure 10-7 Port D Direction Register (PRRD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13

Figure 10-8 Port D Data Register (PDRD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14

Figure 11-1 Timer/Event Counter Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2

Figure 11-2 Timer Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-3

Figure 11-3 Timer Module Programmer’s Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4

Figure 11-4 Timer Prescaler Load Register (TPLR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-5

Figure 11-5 Time Prescaler Count Register (TPCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

Figure D-1 Status Register (SR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-16

Figure D-2 Operating Mode Register (OMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-17

Figure D-3 Interrupt Priority Register–Core (IPR–C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-18

Figure D-4 Interrupt Priority Register – Peripherals (IPR–P) . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-19

Figure D-5 Phase Lock Loop Control Register (PCTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-20

Figure D-6 Host Receive and Host Transmit Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-21

Figure D-7 Host Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-22

Figure D-8 Host Base Address and Host Port Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-23

Figure D-9 Host Interrupt Control and Interrupt Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-24

Figure D-10 Host Interrupt Vector and Command Vector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-25

Figure D-11 Host Receive and Transmit Byte Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-26

Figure D-12 SHI Slave Address and Clock Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-27

Figure D-13 SHI Transmit and Receive Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-28

Figure D-14 SHI Host Control/Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-29

Figure D-15 ESAI Transmit Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-30

Figure D-16 ESAI Transmit Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-31

Figure D-17 ESAI Receive Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-32

Figure D-18 ESAI Receive Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-33

Figure D-19 ESAI Common Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-34

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor LOF-3

Figure D-20 ESAI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-35

Figure D-21 ESAI_1 Multiplex Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-36

Figure D-22 ESAI_1 Transmit Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-37

Figure D-23 ESAI_1 Transmit Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-38

Figure D-24 ESAI_1 Receive Clock Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-39

Figure D-25 ESAI_1 Receive Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-40

Figure D-26 ESAI_1 Common Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-41

Figure D-27 ESAI_1 Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-42

Figure D-28 DAX Non-Audio Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-43

Figure D-29 DAX Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-44

Figure D-30 Timer Prescaler Load and Prescaler Count Registers (TPLR, TPCR) . . . . . . . . . . . . D-45

Figure D-31 Timer Control/Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-46

Figure D-32 Timer Load, Compare and Count Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-47

Figure D-33 GPIO Port B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-48

Figure D-34 GPIO Port C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-49

Figure D-35 GPIO Port D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-50

Figure D-36 GPIO Port E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-51

DSP56366 24-Bit Digital Signal Processor, Rev. 4

LOF-4 Freescale Semiconductor

List of Tables

Table 2-1 DSP56364 Functional Signal Groupings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Table 2-2 Power Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Table 2-3 Grounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Table 2-4 Clock and PLL Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Table 2-5 External Address Bus Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-6 External Data Bus Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-7 External Bus Control Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Table 2-8 Interrupt and Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Table 2-9 Host Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Table 2-10 Serial Host Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

Table 2-11 Enhanced Serial Audio Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Table 2-12 Enhanced Serial Audio Interface_1 Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Table 2-13 Digital Audio Interface (DAX) Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

Table 2-14 Timer Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Table 2-15 JTAG/OnCE Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22

Table 3-1 Internal Memory Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Table 3-2 On-chip RAM Memory Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-3 On-chip ROM Memory Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-4 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Table 4-1 Operating Mode Register (OMR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Table 4-2 DSP56366 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 4-3 DSP56366 Mode Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Table 4-4 Interrupt Priority Level Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Table 4-5 Interrupt Sources Priorities Within an IPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Table 4-6 DSP56366 Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Table 4-7 DMA Request Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Table 4-8 Identification Register Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Table 4-9 JTAG Identification Register Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Table 4-10 DSP56366 BSR Bit Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Table 6-1 HDI08 Signal Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Table 6-2 Strobe Signals Support signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Table 6-3 Host request support signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Table 6-4 HDI08 IRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Table 6-5 HDM[2:0] Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Table 6-6 HDR and HDDR Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

Table 6-7 DSP-Side Registers after Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17

Table 6-8 HDI08 Host Side Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19

Table 6-9 TREQ RREQ Interrupt Mode (HDM[2:0]=000 or HM[1:0]=00) . . . . . . . . . . . . . . . . 6-21

Table 6-10 TREQ RREQ DMA Mode (HM1¼0 or HM0¼0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

Table 6-11 HDRQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21

DSP56366 24-Bit Digital Signal Processor, Rev. 4

Freescale Semiconductor LOT-1

Table 6-12 Host Mode Bit Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22

Table 6-13 INIT Command Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23

Table 6-14 Host Request Status (HREQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25

Table 6-15 Host Side Registers After Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27

Table 7-1 SHI Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Table 7-2 SHI Internal Interrupt Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Table 7-3 SHI Noise Reduction Filter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Table 7-4 SHI Data Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11

Table 7-5 HREQ Function In SHI Slave Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

Table 7-6 HCSR Receive Interrupt Enable Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14

Table 8-1 Receiver Clock Sources (asynchronous mode only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5

Table 8-2 Transmitter Clock Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6

Table 8-3 Transmitter High Frequency Clock Divider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11

Table 8-4 Transmit Network Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16

Table 8-5 ESAI Transmit Slot and Word Length Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18

Table 8-6 Receiver High Frequency Clock Divider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24

Table 8-7 SCKR Pin Definition Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

Table 8-8 FSR Pin Definition Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-25

Table 8-9 HCKR Pin Definition Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26

Table 8-10 ESAI Receive Network Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28

Table 8-11 ESAI Receive Slot and Word Length Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29

Table 8-12 PCRC and PRRC Bits Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48

Table 9-1 EMUXR ESA/ESAI_1 Pin Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

Table 9-2 Transmitter Clock Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

Table 9-3 Receiver Clock Sources (asynchronous mode only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-9

Table 9-4 PCRE and PRRE Bits Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14

Table 10-1 DAX Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

Table 10-2 DAX Interrupt Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-4

Table 10-3 Clock Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7

Table 10-4 Preamble Bit Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9

Table 10-5 Examples of DMA configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11

Table 10-6 DAX Port GPIO Control Register Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13

Table 11-1 Prescaler Source Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6

Table 11-2 Timer Control Bits for Timer 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-8

Table 11-3 Timer Control Bits for Timers 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-8

Table 11-4 Inverter (INV) Bit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-9

Table D-1 Internal I/O Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Table D-2 DSP56366 Interrupt Vectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

Table D-3 Interrupt Sources Priorities Within an IPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-10

Table D-4 HDI08 Programming Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-12

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Preface

The DSP56366 is targeted to applications that require digital audio compression and decompression, sound field processing, acoustic equalization, and other digital audio algorithms.

This manual is intended to be used with the following publications:

• The DSP56300 Family Manual (DSP56300FM), which describes the CPU, core programming models, and instruction set details.

• The DSP56366 Technical Data Sheet (DSP56366), which provides electrical specifications, timing, pinout, and packaging descriptions of the DSP56366.

These documents, as well as Freescale’s DSP development tools, can be obtained through a local Freescale Semiconductor Sales Office or authorized distributor.

To receive the latest information on this DSP, access the Freescale DSP home page at the address given on the back cover of this document.

This manual contains the following sections and appendices.

SECTION 1—DSP56366 OVERVIEW

• Provides a brief description of the DSP56366, including a features list and block diagram. Lists related documentation needed to use this chip and describes the organization of this manual.

SECTION 2—SIGNAL/CONNECTION DESCRIPTIONS

• Describes the signals on the DSP56366 pins and how these signals are grouped into interfaces.

SECTION 3—MEMORY CONFIGURATION

• Describes the DSP56366 memory spaces, RAM and ROM configuration, memory configurations and their bit settings, and memory maps.

SECTION 4—CORE CONFIGURATION

• Describes the registers used to configure the DSP56300 core when programming the DSP56366, in particular the interrupt vector locations and the operation of the interrupt priority registers. Explains the operating modes and how they affect the processor’s program and data memories.

SECTION 5—GENERAL PURPOSE INPUT/OUTPUT (GPIO)

• Describes the DSP56366 GPIO capability and the programming model for the GPIO signals (operation, registers, and control).

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SECTION 6— HOST INTERFACE (HDI08)

• Describes the HDI08 parallel host interface.

SECTION 7—SERIAL HOST INTERFACE (SHI)

• Describes the serial input/output interface providing a path for communication and program/coefficient data transfers between the DSP and an external host processor. The SHI can also communicate with other serial peripheral devices.

SECTION 8—ENHANCED SERIAL AUDIO INTERFACE (ESAI)

• Describes one of the full-duplex serial port for serial communication with a variety of serial devices.

SECTION 9—ENHANCED SERIAL AUDIO INTERFACE 1 (ESAI_1)

• Describes the second full-duplex serial port for serial communication with a variety of serial devices.

SECTION 10—DIGITAL AUDIO TRANSMITTER (DAX)

• Describes the full-duplex serial port for serial communication with a variety of serial devices.

SECTION 11—TRIPLE TIMER MODULE (TEC)

APPENDIX A—BOOTSTRAP PROGRAM

• Lists the bootstrap code used for the DSP56366.

APPENDIX B—EQUATES

• Lists equates for the DSP56366.

APPENDIX C—JTAG/BSDL LISTING

• Provides the BSDL listing for the DSP56366.

APPENDIX D—PROGRAMMING REFERENCE

• Lists peripheral addresses, interrupt addresses, and interrupt priorities for the DSP56366. Contains programming sheets listing the contents of the major DSP56366 registers for programmer reference.

Manual Conventions

The following conventions are used in this manual:

• Bits within registers are always listed from most significant bit (MSB) to least significant bit (LSB).

• When several related bits are discussed, they are referenced as AA[n:m], where n>m. For purposes of description, the bits are presented as if they are contiguous within a register. However, this is not always the case. Refer to the programming model diagrams or to the programmer’s sheets to see the exact location of bits within a register.

• When a bit is described as “set”, its value is 1. When a bit is described as “cleared”, its value is 0.

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• The word “assert” means that a high true (active high) signal is pulled high to VCC or that a low true (active low) signal is pulled low to ground. The word “deassert” means that a high true signal is pulled low to ground or that a low true signal is pulled high to VCC.

High True/Low True Signal Conventions

Signal/Symbol Logic State Signal State Voltage

PIN False Deasserted V

PIN True Asserted V

PIN False Deasserted Ground

PIN is a generic term for any pin on the chip.

Ground is an acceptable low voltage level. See the appropriate data sheet for the range of acceptable low voltage levels (typically a TTL logic low).

VCC is an acceptable high voltage level. See the appropriate data sheet for the range of acceptable high voltage levels (typically a TTL logic high).

True Asserted Ground

• Pins or signals that are asserted low (made active when pulled to ground) — In text, have an overbar (e.g., RESET is asserted low). — In code examples, have a tilde in front of their names. In example below, line 3 refers to the

SS0 pin (shown as ~SS0).

• Sets of pins or signals are indicated by the first and last pins or signals in the set (e.g., HA1–HA8).

• Code examples are displayed in a monospaced font, as shown below:

Example Sample Code Listing

BFSET #$0007,X:PCC Configure: line 1

; MISO0, MOSI0, SCK0 for SPI master line 2

; ~SS0 as PC3 for GPIO line 3

• Hex values are indicated with a dollar sign ($) preceding the hex value, as follows: $FFFFFF is the X memory address for the core interrupt priority register (IPR-C).

• The word “reset” is used in four different contexts in this manual: — the reset signal, written as “RESET,” — the reset instruction, written as “RESET,” — the reset operating state, written as “Reset,” and — the reset function, written as “reset.”

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NOTES

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1 DSP56366 Overview

1.1 Introduction

This manual describes the DSP56366 24-bit digital signal processor (DSP), its memory, operating modes, and peripheral modules. The DSP56366 is a member of the DSP56300 family of programmable CMOS DSPs. The DSP56366 is targeted to applications that require digital audio compression/decompression, sound field processing, acoustic equalization and other digital audio algorithms. Changes in core functionality specific to the DSP56366 are also described in this manual. See Figure 1-1 for the block diagram of the DSP56366.

ESAI

INTER-

FACE

ESAI_1

PERIPHERAL

EXPANSION AREA

INTER-

FACE

PIO_EB

24-BIT

DSP56300

Core

SHI

MEMORY EXPANSION AREA

PM_EB

YAB XAB PAB DAB

X MEMORY

13K X 24

32K x 24

PROGRAM

RAM /INSTR. CACHE 3K x 24

PROGRAM

ROM

40K x 24

Bootstrap

DDB YDB XDB PDB GDB

RAM

ROM

XM_EB

Y MEMORY

RAM

7K X 24

ROM

8K x 24

YM_EB

EXTERNAL ADDRESS

SWITCH

DRAM &

SRAM BUS

INTERFACE

I - CACHE

EXTERNAL DATA BUS

BUS

SWITCH

ADDRESS

CONTROL

DATA

TRIPLE

TIMER

DAX (SPDIF Tx.) INTER-FAC

ADDRESS

GENERATION

UNIT

SIX CHANNELS

DMA UNIT

INTERNAL

DATA

BUS

HOST

INTER-

FAC E

POWER

PLL

CLOCK

GENERATO

EXTAL

RESET

PINIT/NMI

PROGRAM

INTERRUPT

CONTROLLER

PROGRAM

DECODE

CONTROLLE

MODA/IRQA MODB/IRQB MODC/IRQC

PROGRAM

ADDRESS

GENERATOR

DATA ALU

24X24+56->56-BIT MAC

TWO 56-BIT ACCUMULATORS

BARREL SHIFTER

24 BITS BUS

MNGMNT

JTAG

OnCE™

MODD/IRQD

Figure 1-1 DSP56366 Block Diagram

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DSP56300 Core Description

1.2 DSP56300 Core Description

The DSP56366 uses the DSP56300 core, a high-performance, single clock cycle per instruction engine that provides up to twice the performance of Freescale's popular DSP56000 core family while retaining code compatibility with it.

The DSP56300 core family offers a new level of performance in speed and power, provided by its rich instruction set and low power dissipation, thus enabling a new generation of wireless, telecommunications, and multimedia products. For a description of the DSP56300 core, see Section 1.4, "DSP56300 Core

Functional Blocks". Significant architectural enhancements to the DSP56300 core family include a barrel

shifter, 24-bit addressing, an instruction cache, and direct memory access (DMA).

The DSP56300 core family members contain the DSP56300 core and additional modules. The modules are chosen from a library of standard predesigned elements such as memories and peripherals. New modules may be added to the library to meet customer specifications. A standard interface between the DSP56300 core and the on-chip memory and peripherals supports a wide variety of memory and peripheral configurations. Refer to Section 3, "Memory Configuration".

Core features are described fully in the DSP56300 Family Manual. Pinout, memory, and peripheral features are described in this manual.

• DSP56300 modular chassis — 120 Million Instructions Per Second (MIPS) with an 120 MHz clock at 3.3V. — Object Code Compatible with the 56K core. — Data ALU with a 24 × 24 bit multiplier-accumulator and a 56-bit barrel shifter. 16-bit

arithmetic support. — Program Control with position independent code support and instruction cache support. — Six-channel DMA controller. — PLL based clocking with a wide range of frequency multiplications (1 to 4096), predivider

factors (1 to 16) and power saving clock divider (2i: i=0 to 7). Reduces clock noise. — Internal address tracing support and OnCE™ for Hardware/Software debugging. — JTAG port. — Very low-power CMOS design, fully static design with operating frequencies down to DC. — STOP and WAIT low-power standby modes.

• On-chip Memory Configuration —7K × 24 Bit Y-Data RAM and 8K × 24 Bit Y-Data ROM. — 13K × 24 Bit X-Data RAM and 32K × 24 Bit X-Data ROM. — 40K × 24 Bit Program ROM. —3K × 24 Bit Program RAM and 192 × 24 Bit Bootstrap ROM. 1K of Program RAM may be

used as Instruction Cache or for Program ROM patching.

—2K × 24 Bit from Y Data RAM and 5K × 24 Bit from X Data RAM can be switched to Program

RAM resulting in up to 10K × 24 Bit of Program RAM.

• Off-chip memory expansion — External Memory Expansion Port.

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DSP56366 Audio Processor Architecture

— Off-chip expansion up to two 16M × 24-bit word of Data memory. — Off-chip expansion up to 16M × 24-bit word of Program memory. — Simultaneous glueless interface to SRAM and DRAM.

• Peripheral modules — Serial Audio Interface (ESAI): up to 4 receivers and up to 6 transmitters, master or slave. I

Sony, AC97, network and other programmable protocols.

— Serial Audio Interface I (ESAI_1): up to 4 receivers and up to 6 transmitters, master or slave.

S, Sony, AC97, network and other programmable protocols The ESAI_1 shares four of the data pins with ESAI, and ESAI_1 does NOT support HCKR and HCKT (high frequency clocks)

— Serial Host Interface (SHI): SPI and I2C protocols, multi master capability, 10-word receive

FIFO, support for 8, 16 and 24-bit words.

— Byte-wide parallel Host Interface (HDI08) with DMA support. — Triple Timer module (TEC). — Digital Audio Transmitter (DAX): 1 serial transmitter capable of supporting the SPDIF,

IEC958, CP-340 and AES/EBU digital audio formats.

— Pins of unused peripherals (except SHI) may be programmed as GPIO lines.

• 144-pin plastic TQFP package.

1.3 DSP56366 Audio Processor Architecture

This section defines the DSP56366 audio processor architecture. The audio processor is composed of the following units:

• The DSP56300 core is composed of the Data ALU, Address Generation Unit, Program Controller, Instruction-Cache Controller, DMA Controller, PLL-based clock oscillator, Memory Module Interface, Peripheral Module Interface and the On-Chip Emulator (OnCE). The DSP56300 core is described in the document DSP56300 24-Bit Digital Signal Processor Family Manual, Freescale publication DSP56300FM.

• Memory modules.

• Peripheral modules. The peripheral modules are defined in the following sections.

Memory sizes in the block diagram are defaults. Memory may be differently partitioned, according to the memory mode of the chip. See Section 1.4.8, "On-Chip Memory" for more details about memory size.

1.4 DSP56300 Core Functional Blocks

The DSP56300 core provides the following functional blocks:

• Data arithmetic logic unit (Data ALU)

• Address generation unit (AGU)

• Program control unit (PCU)

• Bus interface unit (BIU)

• DMA controller (with six channels)

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DSP56300 Core Functional Blocks

• Instruction cache controller

• PLL-based clock oscillator

• OnCE module

• JTAG TAP

• Memory

In addition, the DSP56366 provides a set of on-chip peripherals, described in Section 1.5, "Peripheral

Overview".

1.4.1 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-bit × 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

1.4.1.1 Data ALU Registers

The Data ALU registers can be read or written over the X memory data bus (XDB) and the Y memory data bus (YDB) as 24- or 48-bit operands (or as 16- or 32-bit operands in 16-bit arithmetic mode). The source operands for the Data ALU, which can be 24, 48, or 56 bits (16, 32, or 40 bits in 16-bit arithmetic mode), always originate from Data ALU registers. The results of all Data ALU operations are stored in an accumulator.

All the Data ALU operations are performed in two clock cycles in pipeline fashion so that a new instruction can be initiated in every clock, yielding an effective execution rate of one instruction per clock cycle. The destination of every arithmetic operation can be used as a source operand for the immediately following arithmetic operation without a time penalty (i.e., without a pipeline stall).

1.4.1.2 Multiplier-Accumulator (MAC)

The MAC unit comprises the main arithmetic processing unit of the DSP56300 core and performs all of the calculations on data operands. In the case of arithmetic instructions, the unit accepts as many as three input operands and outputs one 56-bit result of the following form- Extension:Most Significant Product:Least Significant Product (EXT:MSP:LSP).

The multiplier executes 24-bit × 24-bit, parallel, fractional multiplies, between two’s-complement signed, unsigned, or mixed operands. The 48-bit product is right-justified and added to the 56-bit contents of either

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DSP56300 Core Functional Blocks

the A or B accumulator. A 56-bit result can be stored as a 24-bit operand. The LSP can either be truncated or rounded into the MSP. Rounding is performed if specified.

1.4.2 Address Generation Unit (AGU)

The AGU performs the effective address calculations using integer arithmetic necessary to address data operands in memory and contains the registers used to generate the addresses. It implements four types of arithmetic: linear, modulo, multiple wrap-around modulo, and reverse-carry. The AGU operates in parallel with other chip resources to minimize address-generation overhead.

The AGU is divided into two halves, each with its own Address ALU. Each Address ALU has four sets of register triplets, and each register triplet is composed of an address register, an offset register, and a modifier register. The two Address ALUs are identical. Each contains a 24-bit full adder (called an offset adder).

A second full adder (called a modulo adder) adds the summed result of the first full adder to a modulo value that is stored in its respective modifier register. A third full adder (called a reverse-carry adder) is also provided.

The offset adder and the reverse-carry adder are in parallel and share common inputs. The only difference between them is that the carry propagates in opposite directions. Test logic determines which of the three summed results of the full adders is output.

Each Address ALU can update one address register from its respective address register file during one instruction cycle. The contents of the associated modifier register specifies the type of arithmetic to be used in the address register update calculation. The modifier value is decoded in the Address ALU.

1.4.3 Program Control Unit (PCU)

The PCU performs instruction prefetch, instruction decoding, hardware DO loop control, and exception processing. The PCU implements a seven-stage pipeline and controls the different processing states of the DSP56300 core. The PCU consists of the following three hardware blocks:

• Program decode controller (PDC)

• Program address generator (PAG)

• Program interrupt controller (PIC)

The PDC decodes the 24-bit instruction loaded into the instruction latch and generates all signals necessary for pipeline control. The PAG contains all the hardware needed for program address generation, system stack, and loop control. The PIC arbitrates among all interrupt requests (internal interrupts, as well as the five external requests: IRQA, IRQB, IRQC, IRQD, and NMI), and generates the appropriate interrupt vector address.

PCU features include the following:

• Position independent code support

• Addressing modes optimized for DSP applications (including immediate offsets)

• On-chip instruction cache controller

• On-chip memory-expandable hardware stack

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DSP56300 Core Functional Blocks

• Nested hardware DO loops

• Fast auto-return interrupts

The PCU implements its functions using the following registers:

• PC—program counter register

• SR—Status register

• LA—loop address register

• LC—loop counter register

• VBA—vector base address register

• SZ—stack size register

• SP—stack pointer

• OMR—operating mode register

• SC—stack counter register

The PCU also includes a hardware system stack (SS).

1.4.4 Internal Buses

To provide data exchange between blocks, the following buses are implemented:

• Peripheral input/output expansion bus (PIO_EB) to peripherals

• Program memory expansion bus (PM_EB) to program memory

• X memory expansion bus (XM_EB) to X memory

• Y memory expansion bus (YM_EB) to Y memory

• Global data bus (GDB) between registers in the DMA, AGU, OnCE, PLL, BIU, and PCU as well as the memory-mapped registers in the peripherals

• DMA data bus (DDB) for carrying DMA data between memories and/or peripherals

• DMA address bus (DAB) for carrying DMA addresses to memories and peripherals

• Program Data Bus (PDB) for carrying program data throughout the core

• X memory Data Bus (XDB) for carrying X data throughout the core

• Y memory Data Bus (YDB) for carrying Y data throughout the core

• Program address bus (PAB) for carrying program memory addresses throughout the core

• X memory address bus (XAB) for carrying X memory addresses throughout the core

• Y memory address bus (YAB) for carrying Y memory addresses throughout the core

All internal buses on the DSP56300 family members are 24-bit buses. See Figure 1-1.

1.4.5 Direct Memory Access (DMA)

The DMA block has the following features:

• Six DMA channels supporting internal and external accesses

• One-, two-, and three-dimensional transfers (including circular buffering)

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+ 336 hidden pages

Freescale Semiconductor DSP56366 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1 DSP56366 Overview

1.1 Introduction

1.2 DSP56300 Core Description

1.3 DSP56366 Audio Processor Architecture

1.4 DSP56300 Core Functional Blocks

1.4.1 Data ALU

1.4.1.1 Data ALU Registers

1.4.1.2 Multiplier-Accumulator (MAC)

1.4.2 Address Generation Unit (AGU)

1.4.3 Program Control Unit (PCU)

1.4.4 Internal Buses

1.4.5 Direct Memory Access (DMA)