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AD1816AJST датащи(PDF) 2 Page - Analog Devices |
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AD1816AJST датащи(HTML) 2 Page - Analog Devices |
2 / 52 page AD1816A –2– REV. A PRODUCT OVERVIEW The AD1816A SoundPort Controller is a single chip Plug and Play multimedia audio subsystem for concurrently processing multiple digital streams of 16-bit stereo audio in personal com- puters. The AD1816A maintains full legacy compatibility with applications written for SoundBlaster Pro and AdLib, while ser- vicing Microsoft PC 97 application requirements. The AD1816A includes an internal OPL3 compatible music synthesizer, Phat Stereo circuitry for phase expanding the analog stereo output, an MPU-401 UART, joystick interface with a built-in timer, a DSP serial port and two I 2S serial ports. The AD1816A on-chip Plug and Play routine provides configuration services for all in- tegrated logical devices. Using an external E 2PROM allows the AD1816A to decode up to two additional external user-defined logical devices such as modem and CD-ROM. FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . 11 HOST INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SERIAL INTERFACES . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 ISA INTERFACE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 AD1816A Chip Registers . . . . . . . . . . . . . . . . . . . . . . . . . 21 AD1816A Plug and Play Device Configuration Registers . . 22 Sound System Direct Registers . . . . . . . . . . . . . . . . . . . . . 23 Sound System Indirect Registers . . . . . . . . . . . . . . . . . . . 29 SB Pro; AdLib Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 38 MPU-401 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Game Port Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 APPENDIX A. PLUG AND PLAY INTERNAL ROM . . . . . . . . . . . . . . 40 PLUG AND PLAY KEY AND “ALTERNATE KEY” SEQUENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 AD1816 AND AD1816A COMPATIBILITY . . . . . . . . . 42 USING AN EEPROM WITH THE AD1816 OR AD1816A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 AD1816 FLAG BYTE . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 USING THE AD1816 WITHOUT AN EEPROM . . . . . 42 AD1816A FLAG BYTES . . . . . . . . . . . . . . . . . . . . . . . . 43 USING THE AD1816A WITHOUT AN EEPROM . . . . 44 MAPPING THE AD1816 EEPROM INTO THE AD1816A EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . 45 PIN MUXING IN THE AD1816 AND AD1816A . . . . . 45 PROGRAMMING EXTERNAL EEPROMS . . . . . . . . . 47 REFERENCE DESIGNS AND DEVICE DRIVERS . . . 47 OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 50 TABLE OF CONTENTS Figures Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 1. PIO Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 2. PIO Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Figure 3. DMA Read Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4. DMA Write Cycle . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 5. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 6. DSP Port Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 7. I2S Serial Port Timing . . . . . . . . . . . . . . . . . . . . . . 7 Figure 8. Reset Pulse Width . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 9. Serial Interface Right-Justified Mode . . . . . . . . . . 17 Figure 10. Serial Interface I2S-Justified Mode . . . . . . . . . . . 17 Figure 11. Serial Interface Left-Justified Mode . . . . . . . . . . 17 Figure 12. DSP Serial Interface (Default Frame Rate) . . . . 20 Figure 13. DSP Serial Interface (User Programmed Frame Rate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Figure 14. DSP Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . 21 Figure 15. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . 27 Figure 16. Recommended Application Circuit . . . . . . . . . . 48 Figure 17. AD1816A Frequency Response Plots . . . . . . . . . 49 Tables Table I. DSP Port Time Slot Map . . . . . . . . . . . . . . . . . . . 18 Table II. Chip Register Diagram . . . . . . . . . . . . . . . . . . . . . 21 Table III. Logical Devices and Compatible Plug and Play Device Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Table IV. Internal Logical Device Configuration . . . . . . . . 23 Table V. Sound System Direct Registers . . . . . . . . . . . . . . . 23 Table VI. Codec Transfers . . . . . . . . . . . . . . . . . . . . . . . . . 27 Table VII. Indirect Register Map and Reset/Default States . 30 Table VIII. Sound System Indirect Registers . . . . . . . . . . . 31 Table IX. SoundBlaster Pro ISA Bus Registers . . . . . . . . . . 38 Table X. AdLib ISA Bus Registers . . . . . . . . . . . . . . . . . . . 39 Table XI. MIDI ISA Bus Registers . . . . . . . . . . . . . . . . . . . 39 Table XII. Game Port ISA Bus Registers . . . . . . . . . . . . . . 39 Table XIII. AD1816 Pin Muxing . . . . . . . . . . . . . . . . . . . . 45 Table XIV. AD1816A Pin Muxing . . . . . . . . . . . . . . . . . . . 46 |
Аналогичный номер детали - AD1816AJST |
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Аналогичное описание - AD1816AJST |
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