CMI8738声卡原理图

CMI-8738/PCI AUDIO Specification Preliminary Ver 1.3 Ver. 1.3 8738/PCI C3DX PCI-Based HRTF 3D Extension Positional Audio Chip With high speed PCI V2.1 bus controller and legacy audio SB16® DSPemulator,CMI8738 is designed for PC add-in cards and all-in-one motherboards. No external CODEC is needed in CMI8738: CMI-8738 supports the legacy audio – SB16™, FM emulator/DLS wavetable music synthesis, and HRTF 3D positional audio functions. Above all CMI8738 supports PCtel® HSP56 (1789) interface. Being compatible with A3D™ and DirectSound™ 3D, CMI8738 meets PC98® requirements, and supports professio digital audio interface such as 24-bit SPDIF IN (0.5V ~ 5V)and OUT(44.1K and 48K format). CMI8738 uses HRTF 3D extension technology to enhance traditional HRTF 3D positional audio by substituting two-speaker system by four- speaker one(it supports additional 2CH 16-bit DAC to provide rear side audio). It greatly improves HRTF 3D positional audio quality and successfully removes the sweet spot limitations: users can enjoy genuine 3D audio gaming effects, Features ‹ HRTF-based 3D positional audio, supporting DirectSound™ 3D and A3D™ interface ‹ Supports rear side speakers, C3DX positional audio in 4 CH speaker mode ‹ Legacy audio SB16™ compatible ‹ DLS-based wavetable music synthesizer, supports DirectMusic™ ‹ Professional digital audio interface supporting 24-bit SPDIF IN and OUT (44.1K and 48K format) buffer ‹ Built-in 32ohm Earphone CMI- C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. and don't have to worry about the environmental confinement more. Being outstanding for its full audio functions, competitive p and power management, CMI-8738 is the best choice for peop seeking for optimum use of the PC applications. C-Media licensed HRTF 3D library from Central Research Lab (CRL®), U.K, who provides one of the world's best HRTF libraries (CRL® also licensed its audio technology to YAMAHA ESS®, and other well-known sound chip makers). ‹ Built-in PCtel® HSP56 Modem™ interface ‹ Drivers support AC3® 5.1CH interface. ‹ MPU-401 port ‹ Dual game port ‹ 16-bit full duplex CODEC ‹ 4 CH 16-bit DAC ‹ 32-bit PCI bus master ‹ External E²PROM interface ‹ Single chip design, +5V, 128 pins QFP HSP56 Modem interface CMI-8738/PCI Block Diagram MPU 401 and GAME port DMA engine IRQ control Legacy audio SB16™emulator SPDIF IN and OUT 16-bit CODEC Earphone buffer 3D Surround MIC AMP M R L LINE / AUX / IN Analog Mixer Music Synthesizer HRTF DSP engine PC I BU S PCI interface 14.318Mhz PLL and timing circuit nal 1 any rice, le ®, LINE OUT IC IN ear /R CD / PCPSK Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification PINOUT PINOUT XO U1 CMI8738B XAFERST103 XSCLK104 XHSPFS105 XHSPSDI106 XHSPSDO107 XAFEMCLK108 XBIO3109 XBIO2110 XBIO1111 XBIO0112 XHNDSET113 XMDSEL114 VDD115 GND116 XINTA117 XINTB118 XPRST119 XCLK33120 XGNT121 XREQ122 XADOUTL 64 XVREF 63 XINTVREF 62 AVDD 61 AGND 60 XAFEPD 59 XMOUT 58 XMIN 57 XOUT 56 XIN 55 VDD 54 GND 53 XA0 52 XA1 51 XA2 50 XA3 49 XA4 48 XA5 47 GND 46 VDD 45 XA27 2 G N D 3 VD D 4 XA26 5 XA25 6 XA24 7 XC BE3 8 XID SEL 9 VD D 10 G N D 11 XA23 12 XA22 13 XA21 14 XA20 15 XA19 16 G N D 17 VD D 18 XA18 19 A17 20 XA16 21 XC BE2 22 XFR AM E 23 XIR D Y 24 XTR D Y 25 XD EVSEL 26 VD D 27 G N D 28 XSTO P 29 XPAR 30 XC BE1 31 XR IN G 101 VD D M 100 D G N D 99 XSPD IFO 98 XG D 7 97 XG D 6 96 XG D 5 95 XG D 4 94 XG D 3 93 XG D 2 92 XG D 1 91 XG D 0 90 XR XD 89 XTXD 88 XG PBIO 87 XSPD IFI 86 XM BC SZ 85 XEEC S 84 VD D 5V 83 AG N D 82 AVD D 81 XM IC IN 80 XPC SPKIN 79 XAU XR 78 XAU XL 77 XLN R 76 XLN L 75 XR EAR R 74 XR EAR L 73 XC D R 72 XA15 32 XA14 33 XA13 34 XA12 35 G N D 36 VD D 37 XA11 38 XA10 39 XA9 40 XA8 41 XCBE0 42 XA7 43 XA6 44 XA29128 XA30127 XA31126 GND125 VDD124 XPME123 XA28 1 XAD O U TR 65 XAD C H L 66 XAD C H R 67 XLFILT 68 XR FILT 69 XC D G N D 70 XC D L 71 FFH O O K 102 CMI8738/PCI C3DX AUDIO CHIP QFP 128 PINS 2 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification PIN DESCRIPTION 3 Ver. 1.3 DIGITAL PIN DESCRIPTION Name Number PIN Type Definition XA31-XA0 126-128,1-2,5-7,12-16,19-21,32 -35,38-41,43-44,47-52 I/O PCI bus address and data lines XINTA 117 O Interrupt request , active-low. XINTB 118 O Modem Interrupt request,active-low XPRST 119 I Reset XCLK33 120 I PCI bus clock. XGNT 121 I Bus master grant, active-low. XREQ 122 O Bus master request, tri-state output, active-low. XIDSEL 9 I ID select, active-high. XFRAME 23 I/O Cycle frame, active-low. XIRDY 24 I/O Initiator ready, active-low. The bus master device is ready to transmit or receive data XTRDY 25 I/O Target ready, active-low. The target device is ready to transmit or receive data XDEVSEL 26 I/O Device select, active-low. The target device has decoded the address of the current transaction as its own chip select range. XSTOP 29 I/O Stop transaction, active-low. The target device request to the master to stop the current transaction. XPAR 30 I/O Parity. The pin indicates even parity across XA31-XA9 and XCBE3-0 for both address and data phases. XCBE3,2,1,0 8,22,31,42 I/O Multiplexed command/byte enable. These pins indicate cycle type during the address phase of a transaction. VDD 4,10,18,27,37,45,54,115,124 +5V Digital and PCI I/O power pin GND 3,11,17,28,36,46,53,116,125 GND Digital and PCI I/O ground XIN 55 I 14.318Mhz crystal, or external clock input XOUT 56 O 14.318Mhz crystal XGD7-XGD4 97-94 I Game port switch input pin. Switch D to switch A XGD3-XGD0 93-90 I/O Game port resistor input pin. RC3 to RC0 XTXD 88 O MIDI transmit data XRXD 89 I MIDI receive data XSPDIFO 98 O 44.1kHZ SPDIF output XSPDIFI 86 I* 44.1kHZ SPDIF input XSCLK 104 O MODEM DAA serial clock XBIO3-XBIO 0 109-112 I/O General purpose I/O VDD5V 83 +5V Digital and PCI I/O power pin VDDM 100 +5V Digital and PCI I/O power pin DGND 99 GND Digital and PCI I/O ground XEECS 84 O EEPROM chip select Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification PIN DESCRIPTION ANALOG PIN DESCRIPTION AVDD 61,81 +5V Analog power AGND 60,82 GND Analog ground XADOUTL-R 64,65 AO1 Line out XADCHL-R 66,67 AI/O ADC filter XLFILT 68 AI/O Left channel DAC filter XRFILT 69 AI/O Right channel DAC filter XINTVREF 62 AI Reference Voltage XVREF 63 AI Reference Voltage (no use, left it floating) XCDL-R XCDGND 71,72,70 AI CD audio differential input XLNL-R 75,76 AI Line in or Rear speaker out XAUXL-R 77,78 AI Aux. Line in XPCSPKIN 79 AI PC beep signal XMICIN 80 AI Microphone in XREARL-R 73,74 AI/O Rear speaker out XMDSEL 114 I Modes chip select (high:enable) XGPBIO 87 O General purpose I/O pin (0=disabled, 1=enabled) XRING 101 I Ring detection input XOFFHOOK 102 O Off-hook control output XAFERST 103 O Reset signal for MODEM DAA XHSPFS 105 O MODEM DAA frame SYNC XHSPSDI 106 I MODEM DAA data input XHSPSDO 107 O MODEM DAA data output XAFEMCLK 108 O MODEM DAA master clock XHNDSET 113 O Reserved XAFEPD 59 O Reserved XMOUT 58 O MODEM crystal output (18.432MHz) XMIN 57 I MODEM crystal input XMBCSZ 85 I Audio chip select (low:enable) 4 Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification POWER ON CONFIGURATION PIN Name Number Definition XTXD 88 When pull-down select add-on mode, default pull-high motherboard. XAFEPD 59 When pull-down enable #INTB share with #INTA, default high disabled. XHNDSET 113 When pull-down enable external 18.432Mhz x'tal to HSP module, default pull-high enable internal 24.576Mhz to HSP module. XBIO0 112 When pull-down select CLKGEN ref. clock to external 24.576Mhz x'tal. default pull-high select 14.318Mhz 5 Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings Ratings Symbol Value Units Digital power voltage VDD VDD±5% V Analog power voltage AVDD AVDD±5% V Operating temperature range TO 0 to 70 °C Storage temperature range TST -40 to 125 °C Maximum power dissipation PDMAX 300 MW Digital Characteristics PARAMETER Symbol Min Typ Max Unit Input high voltage(PCI I/O) VIH 2. VDD+0.5 V Input low voltage (PCI I/O) VIL -0.5 0.8 V Output high voltage VOH 2.4 VDD V Output low voltage VOL 0.0 0.2 0.4 V SPDIF IN input high voltage VIH1 2.6 V SPDIF IN input low voltage VIL1 2.4 V SPDIF output high voltage VOH1 VDD V SPDIF output low voltage VOL1 VSS V Output buffer current 5 mA Audio Characteristics PARAMETER Symbol Min Typ Max Unit Analog input voltage Avin 1.1 VRms Analog output voltage Avout 1.1 VRms A-A S/N ratio 85 db A-A THD 0.09 ADC S/N ratio 80 db ADC THD 0.1 0.2 % DAC S/N ratio 80 db DAC THD 0.1 0.2 % SPDIF IN/OUT S/N ratio 120 db SPDIF IN/OUT THD 0 % Microphone input level 20 200 mv Microphone booster 20 db 6 CMI-8738/PCI AUDIO Specification Configuration Space 7 Ver. 1.3 CMI8738 PCI Configuration Spaces(Audio) 00h 13F6 : (Vender ID) read only 02h 0111 : (Device ID) read only 04h 0006 : Command (State after #RST all is “0”) 0 (bit 9) Fast back-to-back enable 0 (bit 8) #SERR enable (R/W) 0 (bit 7) Wait cycle control 0 (bit 6) Parity error response 0 (bit 5) VGA palette snoop 0 (bit 4) Memory write and invalidate enable 0 (bit 3) Special cycles 1 (bit 2) Bus master (R/W) 0 (bit 1) Memory space 1 (bit 0) I/O space (R/W) 06h 0280 : Status 0 (bit 15) Detected Parity Error 0 (bit 14) Signaled System Error 0 (bit 13) Received Master Abort 0 (bit 12) Received Target Abort 0 (bit 11) Signaled Target Abort 01 (bits 10-9) DEVSEL timing 00-fast, 01-medium, 10-slow 0 (bit 8) Data Parity Error Detected 1 (bit 7) Fast Back-to-Back Capable 0 (bit 6) UDF Supported 0 (bit 5) 0-33MHz ,1-66MHZ Capable 00000 (bits 4-0) Reserved 08h 10 : Revision ID 09h 040100 : Audio device 0Ch 00 : Cache Line Size 0Dh 20 : Latency Timer 0Eh 80 : Header Type 0Fh 00 : BIST C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification Configuration 8 Ver. 1.3 10h 0000d401 : I/O of length : -65280(ffff0100h) : First Base Address register 14h 00000000 : Uninitialized : Second Base Address register 18h 00000000 : Uninitialized : Third Base Address register 1Ch 00000000 : Uninitialized : Fourth Base Address register 20h 00000000 : Uninitialized : Fifth Base Address register 24h 00000000 : Uninitialized : Sixth Base Address register 28h 00000000 : Cardbus CIS Pointer 2Ch 13f6 : (SubSystem Vender ID) (R/W) 2Eh ffff : SubSystem ID (R/W) 30h 00000000 : Expansion ROM Base Address 34h 00000000 : Reserved 38h 00000000 : Reserved 3Ch 05 : Interrupt Line 3Dh 01 : Interrupt Pin 3Eh 02 : Min Grant 3Fh 18 : Max Latency CMI8738 Configuration Spaces(Modem) 00h 13F6: (Vender ID) read only 02h 0211: (Device ID) read only 04h Command (State after #RST all is "0") 0 (bit 9) Fast back-to-back enable (read only) 0 (bit 8) #SERR enable (Read only) 0 (bit 7) Wait cycle control (read only) 0 (bit 6) Parity error response (read only) 0 (bit 5) VGA palette snoop (read only) 0 (bit 4) Memory write and invalidate enable (read only) 0 (bit 3) Special cycles (read only) 0 (bit 2) Bus master (read only) 1 (bit 1) Memory space (R/W) 0 (bit 0) I/O space (read only) 06h Status B0 (bit 15) Detected Parity Error B0 (bit 14) Signaled System Error C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification B0 (bit 13) Received Master Abort B0 (bit 12) Received Target Abort B0 (bit 11) Signaled Target Abort B01 (bits 10-9) DEVSEL timing 00-fast, 01-medium, 10-slow B0 (bit 8) Data parity Error Detected B0 (bit 7) Fast Back-to-Back Capable B0 (bit 6) UDF Supported B0 (bit 5) 0-33MHz, 1-66MHz Capable B00000 (bits 4-0) Reserved 08h X10: Revision ID 09h X078000: Communication device (Modem) 0Ch X00: Cache Line Size 0Dh X00: latency Timer oEh X80: Header Type (Multifunction device) oFh X00: BIST 10h Xbbbbb000: Allocate 4K memory space. 14h X00000000: not used - Second Base Address register 18h X00000000: not used - Third Base Address register 1Ch X00000000: not used- Four Base Address register 20h X00000000: not used- Fifth Base Address register 24h X00000000: not used- Sixth Base Address register 28h X00000000: Card bus CIS Pointer 2Ch X13f6: Sub-System Vender ID (Value can be replaced after reset.) (R/W) 2Eh X0211: Sub-System ID (Value can be replaced after reset) (R/W) *Refer to the Audio PCI registers bit-13 of address (18-1B) for how to replace. 30h X00000000: Expansion ROM Base Address 34h X00000040: pointer to the power-saving registers. (Read only) 38h X00000000: Reserved 3Ch X00: Interrupt Line (R/W) 3Dh Interrupt Pin(X01 share interrupt/X02 not share interrupt with Audio) *Select from the power on pin configuration 3Eh X00: Min Grant(not used) 3Fh X00: max Latency(not used) 40h XEC4A0001(read only) 9 Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification 44h-47h B0-B1: PMST (R/W) (11) B7-B2: all 0 (read only) B8: PMEEN (R/W) (Sticky bit) B12-B9: DSEL (R/W) 0000 B14-B13: all 0 (read only) B15: PMESTS (Sticky bit) CMI-8738/PCI AUDIO Specification PCI register Ver. 1.3 Internal Register Mapping Function Control Register 0 Address 00H Bit(s) R/W Name Description 31-20 Reserved. 19 RST_CH1 Channel1, 1->Reset (Default 0) 18 RST_CH0 Channel0, 1->Reset (Default 0) 17 CHEN1 Channel1, 1->Enabled, 0->Disabled. 16 CHEN0 Channel0, 1->Enabled, 0->Disabled. 15-4 Reserved 3 PAUSE1 Channel1, 1->Pause if channel1 is enabled. 2 PAUSE0 Channel0, 1->Pause if channel0 is enabled. 1 CHADC1 Channel 1 , 1->Recording, 0->Playback 0 CHADC0 Channel 0, 1->Recording, 0->Playback Function Control Register 1 Address 04H Bit(s) R/W Name Description 31-16 Reserved 15-13 DSFC[2:0] DAC Sampling Frequency Select, 0 0 0 5.512 K 0 0 1 11.025 K 0 1 0 22.05 K 0 1 1 44.1 K 1 0 0 8 K 1 0 1 16 K 1 1 0 32 K 1 1 1 48 K 12-10 ASFC[2:0] ADC Sampling Frequency Select, 0 0 0 5.512 K 0 0 1 11.025 K 0 1 0 22.05 K 0 1 1 44.1 K 1 0 0 8 K C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification 1 0 1 16 K 1 1 0 32 K 1 1 1 48 K 9 SPDF_1 SPDIF IN/OUT at Channel B at 44.1K double-words/sec. 8 SPDF_0 SPDIF OUT only at Channel A at 44.1K double-words/sec. 7 SPDFLOOP external SPDIF/IN loopback to external SPDIF/OUT . 6 SPDO2DAC SPDIF/OUT can be heard from internal DAC. 5 INTRM Interrupt Mask bit for MCB (Master control block) module interrupt. 0 MCB interrupt disabled. 1 MCB interrupt enabled. 4 BREQ If this bit is set low it will prevent the MCB and DAC/ADC block from accessing the memory. 0 Bus Master request disabled(power on state) 1 Bus Master request enabled. 3 VOICE_EN This bit enables Legacy Voice device(SB16,FM). 0 Legacy Voice disabled on channel 0. 1 Legacy Voice enabled on channel 0. 2 UART_EN This bit enables Legacy UART device. 0 UART disabled 1 UART enabled 1 JYSTK_EN This bit enables Legacy Joystick device. 0 Joystick disabled 1 Joystick enabled 0 Reserved Channel Format Register Address 08H Bit(s) R/W Name Description 31-24 VER[7:0] PCI Audio subversion for internal indentification. “01” 23-22 SWTCLK[1:0] In real mode, switch CLOCK Generator output to XSPDIF/out. 0X maintain original spdif/out bit stream to XSPDIF/out. 10 16.9344MHZ to I/O XSPDIFO 11 24.576MHZ to I/O XSPDIFO 21 Reserved 20 AC3EN When set 1,it will generate AC3 enable bit on spdif/out FRAMA #1 bit 30 ( channel status bit) Ver. 1.3 C-MEDIA ELECTRONICS INC. Tel:886-2-87731100 Fax:886-2-87732211 URL : www.cmedia.com.tw Products and company names mentioned here are the trademarks of their respective owners. CMI-8738/PCI AUDIO Specification 19 SELSPDIFI2 When set 1,internal spdif/in will switch to secondary SPDIF/IN I/O(XHNDSET) 18 FMOFFSET2 When set 1 and Reg. 24H bit7 ‘FMmute=1’,FM PCM will be forced to DC value 0002H. 17 SPD24SEL When set 1 and SPD32SEL=1,SPDIF/out transmit 24bit PCM data,PCM data in system format only valid in 24 least significant Bits D[23:0] ,bits D[31:24] don’t care. 16 INVSPDIFI Inverse spdif/in data,function for compatible to different CD-ROM . 15-14 AdcBitLen[1:0] Sample resolution 00 16 Bits per sample . (Default) 01 15 Bits per sample. 10 14 Bits per sample. 11 13 Bits per sample. 13-12 AdcDacLen[1:0] Sample resolution 00 600nSec per bit in a sample. 01 660nSec per bit in a sample. 10 1.3uSec per bit in a sample. (Default) 11 2.8uSec per bit in a sample. 11 CH1 Ssmple Rate 176K 10 CH1 Sample Rate 88K 9 CH0 Sample Rate 176K 8 CH0 Sample Rate 88K 7-4 reserved 3-2 CH1FMT[1:0] Data format of