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DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set General Description
The DM560P integrated modem is a four chipset design that provides a complete solution for stateof-the-art, voice-band Plain Old Telephone Service (POTS) communication. The modem provides for Data (up to 56,000bps), Fax (up to 14,400bps), Voice and Full Duplex Speaker-phone functions to comply with various international standards. The design of the DM560P is optimized for desktop personal computer applications and it provides a low cost, highly reliable, maximum integration, with the minimum amount of support required. The DM560P modem can operate over a dial-up network (PSTN) or 2 wire leased lines. The modem integrates auto dial and answer capabilities, synchronous and asynchronous data transmissions, serial and parallel interfaces, various tone detection schemes and data test modes. The DM560P modem reference design is preapproved for FCC part 68 and provides minimum design cycle time, with minimum cost to insure the maximum amount of success. The simplified modem system, shown in figure below, illustrates the basic interconnection between the MCU, DSP, AFE and other basic components of a modem. The individual elements of the DM560P are: • • • • DM6580 Analog Front End (AFE). 28-pin PLCC package DM6581 ITU-T V.90 Transmit Digital Signal Processor (TX DSP). 100-pin QFP package DM6582 ITU-T V.90 Receive Digital Signal Processor (RX DSP). 100-pin QFP package DM6583 Modem Controller (MCU) built in Plug & Play (PnP). 100-pin QFP package
Block Diagram
LED
40.32MHz
Ring Detector
SCLK DIT DOT TFS DIR DOR RFS TxBCLK TxSCLK*2 RxBCLK RxSCLK 20.16MHz TxDCLK RxDCLK
29.4912 MHz ISA Bus
DM658 3 Micro Controller Unit
PnP
Address & Data Bus MSCLK
DM658 1 TX DSP
DM658 0 Analog Front End
SPKR
RxIN TxA1 TxA2
DAA
Lin e
DM658 2 RX DSP
TxD RxD
Speaker Driver Microphone Driver
V.24 Interface
V.24 Interface
Preliminary Version: DM560P-DS-P07 August 11, 2000
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DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set Table of Contents
General Description Block Diagram Features 1 1 3 3. Dual Port RAM 4. Interrupt DM6581/82 Absolute Maximum Ratings DM6581/82 Electrical Characteristics DM6581/82 Timing Diagrams Chip 3: DM6580 Analog Front End DM6580 Description 33 DM6580 Block Diagram 33 DM6580 Features 34 DM6580 Pin Configuration 34 DM6580 Pin Description 35 DM6580 Functional Description 35 DM6580 Absolute Maximum Ratings 37 DM6580 DC Characteristics 37 DM6580 AC Characteristics & Timing Diagrams 37 DM6580 Performance 37 Package Information Ordering Information Company Overview Contacts 26 26 26 27 28 29 29 29 38 40 40 40 30 30 31 31 32
Chipset Chip 1: DM6583 Modem Controller Unit with PnP DM6583 Description DM6583 Block Diagram DM6583 Features DM6583 Pin Configuration DM6583 Pin Description DM6583 Functional Description 1. Operating Mode Selection 2. Micro-controller (8032) Reference 3. Micro-controller Register Description 4. UART (16550A) Emulation Registers 5. Plug and Play (PnP) Module DM6583 Absolute Maximum Ratings DM6583 Electrical Characteristics DM6583 Timing Diagrams Chip 2: DM6581 ITU-T V.90 TX DSP Chip 3: DM6582 ITU-T V.90 RX DSP DM6581/82 Description DM6581/82 Block Diagram DM6581/82 Features DM6581/82 Pin Configuration DM6581/82 Pin Description DM6581/82 Functional Description 1. System Clock 2. Serial Port 4 4 4 5 6 8 8 8 8 9 16 24 24 25
Appendix A-1 Internal Card Application Circuit 41 Appendix A-2 Internal Card Reference B.O.M. 42 Appendix B Copy Of FCC Approval Certificate 43
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Preliminary Version: DM560P-DS-P07 August 11, 2000
DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set
Set
Features
s Compatibility - ITU-T V.90 (56000 to 28000 bps) - ITU-T V.34 (33600 to 2400 bps) - CCITT V.32bis (14400, 12000, 9600, 7200, 4800bps) - CCITT V.32 (9600, 7200, 4800bps) - CCITT V.22bis (2400, 1200bps) - CCITT V.22 (1200bps) - CCITT V.23 (1200/75bps) - Bell 212A (1200bps) - Bell 103 (300bps) s Fax - CCITT V.17 (14400, 12000, 7200bps) - CCITT V.29 (9600, 7200bps) - CCITT V.27ter (4800, 2400bps) - CCITT V.21 Channel 2 (300bps) - Group III, Class 1 s Data Error Correction - MNP Class 4 - CCITT V.42 LAPM s Data Compression - MNP Class5 - CCITT V.42bis s Voice compression - 2 and 4 bit ADPCM - IMA ADPCM (Developing) - 8 Bit PCM s DTE Interface - DTE speed up to 115200bps s Enhanced T” command set and S registers - TIA/EIA 602, ITU V.25 ter AT command s s s s s s s s s s s s - TIA/EIA 578 Fax Class 1 command set - TIA/EIA IS-101 Voice command set s s s s Video-ready modem interface V.80(Developing) V.8bis (Developing) Integrated UART 16550 Parallel and Serial interfaces - 6, 7 and 8 bit character support - Even, odd, mark and none parity detection and generation - 1 and 2 stop bit support - Auto DTE data speed detection through “AT” Caller identification (Caller ID) support Speakerphone
s Selectable world wide call progress tone detection 16 Bit over-sampling codec Compromise and adaptive equalizer providing channel impairment compensation Plug and Play (PnP) support Enhanced 8032 compatible micro-controller Power Management (power down mode) 8 selectable interrupts Access up to 256K bytes external program memory Access up to 64K bytes external data memory NVRAM to store two user configurable, selectable profiles with three programmable telephone numbers Full duplex data mode test capabilities - Analog loop test
Chipset
The DM560P integrated modem device set contains 4 VLSI devices as described below: 1. DM6583 Modem Controller Unit with PnP for ISA 2. DM6580 Analog Front End (AFE) 3. DM6581 ITU-T V.90 Transmit Digital Signal Processor (TX DSP) 4. DM6582 ITU-T V.90 Receive Digital Signal Processor (RX DSP)
Preliminary Version: DM560P-DS-P07 August 11, 2000
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DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set Chip 1: Modem Controller Unit with PnP for ISA DM6583 Description
The DM6583 Modem Control Unit is designed for use in high speed internal and external modem applications. The DM6583 interface is compatible with the DM6581/DM6582 Transmit and Receive Digital Signal Processors. The DM6583 incorporates a 80C32 micro-controller, a virtual 16550A UART with FIFO mode, and Plug & Play control logic. The DM6583 MCU performs general modem control functions, and is also designed to provide Plug and Play capability for ISA bus systems. The Plug and Play logic supports software or automatic Plug and Play selectable I/Os to allow users to configure the internal modem card without jumpers.
DM6583 Block Diagram
Mode Selection
PC Data Bus PC Address Bus IRQ & R/W Control PnP Control Logic Virtual 16550 UART 8032 Micro-Controller External ROM, RAM Interface
RS 232 Interface I/O Control Logic
Modem Control Interface
DM6583 Features
• • • • • • • Control interface support Supports parallel and serial interfaces Includes a 80C32 micro-controller 256K bytes maximum external program memory 64K bytes maximum external data memory Provides automatic Plug and Play or software configuration capabilities 8 selectable Interrupts
• •
Conflict free I/O base address selection Virtual 16550A UART compatible parallel interface • Fully programmable serial interface: - 6, 7 or 8-bit characters - Even, odd, mark and none parity bit generation and detection - 1 and 2 stop bit generation - Baud rate generation - Includes I/O control logic for modem control interface
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Preliminary Version: DM560P-DS-P07 August 11, 2000
DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set DM6583 Pin Configuration
Voice Sel1
voice sel2
EXT/INTB
RXRCLK
TXRCLK
/PNPEN
/TUCS
/POR
GND
PS1
A15
A14
A13
A12
V DD
GND
D0
D1
D2 82
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
UD0 UD1 UD2 UD3 UD4 UD5 UD6 UD7 /IOR GND /IOW /AEN A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 V DD IRQ4 IRQ5 IRQ7 IRQ10 RESET
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
100
81 80 79 78 77 76 75 74 73 72 71 70 69 68 67
D3
D4 D5 D6 D7 CA0 CA1 CA2 CA3 CA4 CA5 CA6 CA7 GND CA8 CA9 CA10 CA11 CA12 CA13 CA14 CA15 IRQ3 /RD /WR /PSEN ALE/P TXD RXD V DD /LCS
DM6583
66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
/PWR
V DD
EEPROM1
EEPROM2
/RUCS
CA17
CA16
/RI
Preliminary Version: DM560P-DS-P07 August 11, 2000
EEROM3
/VOICE
XTAL1
XTAL2
GND
IRQ11
IRQ12
IRQ15
/DTR
/OH
T0
T1
5
DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set DM6583 Pin Description
Pin No. 1-8 Pin Name UD0 - UD7 I/O I/O Description Data Bus Signal, for internal modem: These signals are connected to the data bus of the PC I/O. They are used to transfer data between the PC and the DM6583. Modem Control Output, for external modem: Memory address mapping of the controller is E800H. I/O Read: An active low input signal used to read data from the DM6583. Ground I/O Write: An active low input signal used to write data to the DM6583. Address Enable: This is an active low signal to enable the system address for DM6583. System Address: These signals are connected to the bus of PC I/O. They are used to select DM6583 I/O ports. A0~A7:Modem Control Input for external modem. Memory address mapping of the controller is E800H. +5V Power Supply Interrupt Request: These are the interrupt request pins. Only one pin, which is decoded from Configuration Register can be active. The active pin will go high when an interrupt request is generated from the DM6583. Reset: An active high signal used to reset the DM6583. Crystal Oscillator Input Crystal Oscillator Output Controller Program Write Enable: This pin is used to enable FLASH ROM programming. In configurations with no FLASH memory, this pin is not connected. Loop Current Detection. Modem Input Control: This pin is mapped to bit0 of address D000H. RX DSP Register Select Output: Memory address mapping of the controller is E400H. Ban
