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about.book Page iii Friday, December 18, 1998 9:41 AM IF YOU HAVE QUESTIONS, WE’RE HERE TO HELP YOU.
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about.book Page ix Friday, December 18, 1998 9:41 AM About the Am186TMCC Communications Controller ISDN TA Reference Design The Am18670CC communications controller ISDN terminal adapter (TA) reference design is designed as a small, cost-effective ISDN solution for embedded communications applications. This design is intended to reduce the time to market for ISDN designers using the Am186CC communications controller. Figure 0-1 shows a block diagram of the ISDN TA reference design.
about.book Page x Friday, December 18, 1998 9:41 AM $P && &RPPXQLFDWLRQV &RQWUROOHU 7,3 .[ '5$0 $0' )ODVK 0HPRU\ $P ) %,8 &KLS 6HOHFWV 0HPRU\ &RQWUROOHU 7LPHU ,&8 8$57 +LJK 8$57 ;&95 '% 3HUIRUPDQFH ELW FRUH +'/& +'/& +'/& +'/& *&, 3&0 86% 86% '0$ 66, 3,2 6 7 7UDQVFHLYHU $0' $P & $ 5- 25 8 7UDQVFHLYHU 7 Figure 0-1.
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about.book Page xii Friday, December 18, 1998 9:41 AM ISDN Background ISDN (integrated services digital network) is an alternative to analog phone lines. ISDN provides greater performance than analog and is still affordable to consumers.
about.book Page xiii Friday, December 18, 1998 9:41 AM Documentation The Am18670CC Microcontroller ISDN TA Reference Design User’s Manual provides information on the system and board features, functionality, and ISDN interfaces. Additional information can be found in the documentation listed on page xiv. About this Manual Chapter 1, "Quick Start" provides installation information for the ISDN TA reference design.
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about.book Page 1 Friday, December 18, 1998 9:41 AM Chapter 1 Quick Start This chapter provides information that helps you quickly setup and install the ISDN TA reference design. • For information on how to connect the ISDN TA reference design to a PC (highspeed serial connection or full-speed USB connection), see page 1-2. • For information on how to locate other sources of information, see page 1-3.
Connecting to a PC The procedure in this section describes how to connect the ISDN TA reference design to a PC using either a USB or serial port. Follow the steps below to connect the ISDN TA reference design board to your PC. For information on how to invoke the software, see the Software Quick Start document included in your kit.
about.book Page 3 Friday, December 18, 1998 9:41 AM 3. Plug the AC adapter into a power source. Connect the 5 VDC from the AC adapter to the ISDN TA through the barrel connector. 4. If you are using a USB PC interface, connect the USB cable into the USB TypeB connector on the ISDN TA. 5. When all of the power and PC connections have been made, apply power by toggling the switch located at the back of the ISDN TA. The power LED (PWR LED) turns on when power is correctly applied. For More Information...
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about.book Page 1 Friday, December 18, 1998 9:41 AM Chapter 2 System Features and Components The ISDN TA reference board provides a small, low-cost, stand-alone system for use by ISDN developers using the Am186CC communications controller.
about.book Page 2 Friday, December 18, 1998 9:41 AM Layout and Placement The ISDN TA reference design emphasizes the small board size that can be obtained by using the Am186CC communications controller in an embedded communications application. Refer to Figure 2-1 on page 2-4 for layout and component placement. The ISDN TA reference design board has the Flash memory, DRAM, and TIP connector located close to the processor to provide a linear, logical signal flow for the address and data bus.
about.book Page 3 Friday, December 18, 1998 9:41 AM Table 2-1. ISDN TA Reference Design Parts List (Continued) Part Number Part Description Part Location CR2–CR8 Status indicator LEDs A-1–A-3 P1 RJ-45 connector C-3 P2 DB-9 connector C-2 P3 USB type-B connector C-2 P4 Power connector C-1 P5 TIP connector B-1 SW1 Power switch C-1 SW2 Reset button C-2 JP1 Flash memory CS jumper A-1 JP2 x8 boot jumper A-1 F1 ISDN U interface line fuse C-3 F2 1.
about.book Page 4 Friday, December 18, 1998 9:41 AM C B A 1 2 3 Figure 2-1.
about.book Page 5 Friday, December 18, 1998 9:41 AM The ISDN TA reference design was designed to fit in a very small desktop enclosure. The circuit board is 3.85” x 4.75”, and fits into a variety of enclosures. There are mounting holes on three corners; the fourth is on the side. Am186CC Microcontroller The ISDN TA reference design is used to control the ISDN TA. A block diagram of the ISDN TA reference design is shown in Figure 2-2.
about.book Page 6 Friday, December 18, 1998 9:41 AM The system uses a single 24-MHz crystal. This design uses an internal 2x PLL which provides a 48-MHz system clock and the required 48-MHz USB clock. Because the USB clock is derived from the system PLL, the USB crystal input, USBX1, is terminated. The clock generation circuit is shown in Figure 2-3. X3 X1 X2 USBX1 2 C57 27pF 1 24.000 MHz R33 10K C58 27pF Figure 2-3.
about.book Page 7 Friday, December 18, 1998 9:41 AM System Memory This design uses 512 Kbyte of AMD Flash memory for code space located from 0x80000h–0xFFFFFh, and 512 Kbyte of DRAM. The memory schematic is shown in Figure 2-4. The Am29F400 Flash memory is used in a 256k x 16 configuration. The Am29F400 is byte/word selectable using the BYTE# pin. In case the 512 Kbyte of Flash memory is not sufficient, PIO 35 is routed to the chip to act as a bank select.
about.book Page 8 Friday, December 18, 1998 9:41 AM ISDN S/T Interface The Am79C32A IDC (ISDN data controller) circuit is used to provide the fourwire 2B+D S/T interface. This device has a general circuit interface (GCI) or IOM-2 serial microprocessor interface, which is used to transfer B channel data to and from the Am186CC microcontroller’s integrated HDLC controller.
about.book Page 9 Friday, December 18, 1998 9:41 AM ISDN U Interface The Lucent T7237 circuit is used to provide the two-wire 2B+D U interface. This device has a PCM serial microprocessor interface and an SSI (synchronous serial interface). These interfaces are used to transfer data to and from the Am186CC microcontroller using it’s integrated HDLC. This chip provides the two-wire network termination.
about.book Page 10 Friday, December 18, 1998 9:41 AM Serial PC Interface The serial port may be used for communication with a PC. The Sipex high-speed RS-232 transceiver is used to provide serial data rates up to 230 kbps. The DCE serial connection is made through a standard female DB-9, which uses a straightthrough serial cable. PIO1 and PIO28 are used to provide extra flow control signaling to support Plug and Play (PnP) operation. The two LEDs are used to indicate transmit and receive activity.
about.book Page 11 Friday, December 18, 1998 9:41 AM USB PC Interface The ISDN TA reference design has an integrated USB peripheral controller with a built in transceiver; differential USB signals connect directly to the controller without requiring an external transceiver. A USB type B connector is used for connection to a PC. The N MOSFETs are used with the two PIOs for VCC attach and detach. The attach and detach steps are listed below. The USB interface transfers data at up to 12 Mbps.
about.book Page 12 Friday, December 18, 1998 9:41 AM Power Supply This design requires only two voltages, +5 V and +3.3 V. The associated currents and power estimates are included in Table 2-2. A 5-V, 500-mA, regulated, wallmount AC adapter is used to supply system power. The AC adapter is connected to the system using a standard 5.5-mm barrel connector. A Raychem 750-mA fuse is used to protect the circuit from any surge in current. To reset the fuse, unplug the board and allow the fuse to cool.
The reset circuit consists of a push button, a diode, and an RC circuit used to provide a time delay. The reset circuit is shown in Figure 2-9. The RES signal into the Am186CC microcontroller must be held Low for at least 1 ms to allow the internal circuitry to settle. The Am186CC microcontroller begins fetching instructions 6.5 CLKOUT periods after RES is deasserted. VCC5 VCC3 U15 F2 1 2 3 + SW SPDT C+K 7101 C55 10uF 16V C-CASE 1 750mA 2 IN OUT GND TAB 3 C56 4 + 10uF LDO 3.
about.book Page 14 Friday, December 18, 1998 9:41 AM Test Interface Port (TIP) The test interface port (also available from AMD, but not included with the ISDN TA reference design) provides an interface to a low-cost AMD development board. This board is useful for testing, debugging, and developing software on AMD’s reference designs. It contains an 8-bit Flash memory device, LEDs, hexadecimal displays, an LCD, serial ports, a parallel port, and an Ethernet controller.
about.book Page 15 Friday, December 18, 1998 9:41 AM To boot from the TIP board, the Am186CC microcontroller must be reset in x8 boot mode, and the UCS signal must be routed to the TIP Flash memory. The x8 boot is accomplished by using JP2 to pull the MCS0# signal to ground during reset (see Figure 2-11). To route the UCS signal to the TIP Flash memory, remove the jumper on JP1 and install the jumper on the TIP.
about.book Page 16 Friday, December 18, 1998 9:41 AM ISDN TA Pin Usage Table 2-3 shows the Am186CC microcontroller multiplexed pin usage for the ISDN TA. • [] indicates an alternate pin function. • {} indicates a reset configuration (pinstrap). • boldface denotes the pin function. Table 2-3.
about.book Page 17 Friday, December 18, 1998 9:41 AM Table 2-3.
about.book Page 18 Friday, December 18, 1998 9:41 AM RESCON Configuration The RESCON register provides a way to make design-specific hardware configuration information available to software. The RESCON register is read from AD[0..15] during reset. Because the Am186CC communications controller has weak internal pulldowns, the default value is logic Low. Setting a bit requires a 10-kΩ pullup resistor. Figure 2-12 shows the RESCON register bits. Figure 2-12.
about.book Page 19 Friday, December 18, 1998 9:41 AM Figure 2-13 shows the schematic for the RESCON configuration. The Board ID for the ISDN TA is 0x100. The Board Configuration for the ISDN U interface population option is 0x0000. The S interface Board Configuration is 0x0001. NOTE: The components designated with an asterisk (*) are not populated. VCC5 AD[0..15] AD0 AD1 AD2 AD3 AD8 AD9 AD10 AD14 R53 R54 R55 R56 R57 R58 R59 R60 10K *10K *10K *10K *10K *10K *10K 10K Figure 2-13.
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about.book Page 1 Friday, December 18, 1998 9:41 AM Appendix A Bill of Materials (BOM) and Schematics The ISDN TA, S/T interface, reference design board bill of materials begins on page A-2. The ISDN TA, U interface, reference design board bill of materials begins on page A-7.
about.book Page 2 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM Item Quantity Reference Part Part Spec. PCB Footprint 1 1 CR1 LED SOT-23 Lumex SSLLX15IGC-RPTR SOT-23 2 7 CR2,CR3,CR4,CR5, CR6,CR7,CR8 LED RT green SLI 5608F5 TH-2 3 1 C1 3.3 µF Tantalum, B CASE, 16V B-CASE 4 8 C2,C14,C44,C45,C46 1000 pF ,C47,C48, C49 ± 10%, X7R, 16V 603 5 9 C3,C15,C35,C36, C37,C38,C39,C40, C41 0.
about.book Page 3 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 12 1 C27 1.0 µF Phillips 2222 370 75105 TH-2 13 1 C28 820 pF ± 5%, X7R, 16V 603 14 2 C29,C31 3300 pF ± 10%, X7R, 16V 603 15 1 C30 1.
about.book Page 4 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM (Continued) Item Quantity Reference Part Part Spec.
about.book Page 5 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 40 6 R17,R30,R32,R35, R36,R37 270 ± 5%, 1/10W 603 41 1 R20 2.2M ± 5%, 1/8W 805 42 1 R21 21 ± 1%, 1/4W 1206 43 2 R22,R23 16.9 ± 1%, 1/4W 1206 44 2 R25,R26 680 ± 5%, 1/10W 603 45 1 R27 1.
about.book Page 6 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM (Continued) Item Quantity Reference Part Part Spec.
about.book Page 7 Friday, December 18, 1998 9:41 AM Table A-1. ISDN TA S/T Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 69 1 U13 SP211 Sipex SP211ECA SSOP-28 70 1 U14 74ACT04 National 74ACT04SC SOIC-14 71 1 U15 LDO 3.3 Micrel SOT-223 MIC5209-3.3BS 72 2 U16,U17 LC03-61 Semtech LC03-6 SO-8 73 1 X1 12.228MHz1 Ecliptek EC112.228MCL100 74 1 X2 15.36011MHz Saronix SRX5144 HC-49 75 1 X3 24.000 MHz HC-49 Ecliptek EC224.
about.book Page 8 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 4 8 C2,C14,C44,C45, C46,C47,C48,C49 1000 pF ± 10%, X7R, 16V 603 5 9 C3,C15,C35,C36, 0.01 µF C37,C38,C39,C40,C41 ± 10%, X7R, 16V 603 6 26 C4,C5,C6,C7,C8,C9, C10,C11,C12,C13, C32,C33,C34,C42, C43,C50,C51,C52, C59,C61,C62,C63, C64,C65,C66,C67 0.1 µF ± 10%, X7R, 16V 603 7 4 C16,C17,C18,C19 0.
about.book Page 9 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 15 1 C30 1.
about.book Page 10 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. 27 1 P1 RJ45A AMP 555153- TH-12 1 28 1 P2 Connector DB9 AMP 787844- TH-11 5 29 1 P3 USB Conn. AMP 787780- TH-4 1 30 1 P4 Barrel conn.
about.book Page 11 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 41 1 R20 2.2M ± 5%, 1/8W 805 42 1 R21 21 ± 1%, 1/4W 1206 43 2 R22,R23 16.9 ± 1%, 1/4W 1206 44 2 R25,R26 680 ± 5%, 1/10W 603 45 1 R27 1.
about.book Page 12 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec.
about.book Page 13 Friday, December 18, 1998 9:41 AM Table A-2. ISDN TA U Interface Board BOM (Continued) Item Quantity Reference Part Part Spec. PCB Footprint 68 1 U12 P2300SB Teccor P2300SB,or SGSThomson SMP100-200 SMB 69 1 U13 SP211 Sipex SP211ECA SSOP-28 70 1 U14 74ACT04 National 74ACT04SC SOIC-14 71 1 U15 LDO 3.3 Micrel MIC52093.3BS SOT-223 72 2 U16,U17 LC03-61 Semtech LC03-6 SO-8 73 1 X1 12.228MHz1 Ecliptek EC1- HC-49 12.228MCL100 74 1 X2 15.
Am186TMCC Microcontroller ISDN TA Reference Design Manual A B C D E VCC VCCA 40 1 C5 0.1uF 1000pF C2 1 REV 2.0: 41 81 80 121 120 C6 0.1uF C3 0.01uF C7 0.1uF C4 0.1uF Test points removed AM186CC 160 R51 C8 0.1uF 10 C9 0.1uF C10 0.1uF C11 0.1uF NOTE: Decoupling capacitors each located next to a VCC pin 3.3uF 16V B-CASE + C1 VCC3 2 C12 0.1uF 2 MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11 MA12 MA13 MA14 MA15 MA16 MA17 MA18 MA19 C62 0.1uF C13 0.1uF C63 0.1uF C64 0.
Am186TMCC Microcontroller ISDN TA Reference Design Manual E D C B A 1 LCS# MCS2# MCS1# RD# WR# RES# PIO31 UCS# AD[0..15] MA[0..
Am186TMCC Microcontroller ISDN TA Reference Design Manual E D C B A 3 1 2 FSCA VCC5 VCC5 1 R24 SDATA SCLK INT2 TXDA RXDA CLKA 17 3 RESET CS# RD# WR# INT# 1 STLEDX *10K 1 TDMDI TDMD0 TDMCLK GNDD INT# SDI VDDD SDO SCK GNDD CKOUT 27pF C21 VCC5 R108 2K 1206 REV 2.0: VCCAU *T7237A PLCC VCCAU 2 C32 *0.1uF VRCM VDDA SDINP SDINN HP LON GNDA VDDA LOP HN VRN VRP R20 0805 R13 *17.8K 0805 1% VCC5 R114 DT8 22.
Am186TMCC Microcontroller ISDN TA Reference Design Manual A B C D 1 AM186CC Tri-states USBD+/- USB_Detect) 2) 2) AM186CC drives USB_Vcc to enable Q1 Detach Attach Serrano USB Attach/Detach USB Interface NOTE: SIPEX XCVR'S HAVE 400K PULLUPS ON DRIVER INPUTS AND 5K PULLDOWNS ON RECEIVER INPUTS PIO28 PIO1 RTRHU# RXDHU CTSHU# TXDHU 2 2 PIO8 74ACT04 U14A 2 2 C52 0.1uF 1 1 2 3 VCC5 VCC5 SLEDX4 2 R30 3 270 DIODE RB400D D1 3 C67 0.1uF C42 0.
Am186TMCC Microcontroller ISDN TA Reference Design Manual E D C B A CENTER SHUNT SLEEVE 3 1 POWER Top View 1 Barrel Connector 2 BARREL CON KYCON KLD-0202-BC P4 1 2 3 Power Supply REV 2.0: Pinout MA[0..19] AD[0..
about.book Page 1 Friday, December 18, 1998 9:41 AM Appendix B Glossary of Terms 2B+D - Describes the BRI configuration for ISDN of two bearer channels and one D channel. 2B1Q - Two binary, one quaternary, data format for the U-interface. One quaternary symbol (±3, ±1) represents two bits. B Channel - Bearer channel, 64kbps voice/data channel for ISDN. bps - Bits per second. BRI - Basic Rate Interface. The simple 2B+D access method defined by CCITT recommendation I.430.
about.book Page 2 Friday, December 18, 1998 9:41 AM HDLC - High-Level Data-Link Controller. ISO standard for layer-2 data bitoriented communications protocol. HDLC is used for LAPB, LAPD, V.120 and SS7. IDC - ISDN Data Controller. Performs D channel processing on the S/T reference point data. IOM-2 - Industry standard serial bus developed by Siemens. ISDN - Integrated Services Digital Network. ISO - International Standardization Organization. Developed the OSI reference model and HDLC standards.
about.book Page 3 Friday, December 18, 1998 9:41 AM R -Interface - Reference point between non-ISDN devices and terminal adapters. SBP - Serial Bus Port. The simple PCM highway used by the Am79C32A device. SS7 - Signal System 7. High-speed, common channel interoffice signaling system necessary for ISDN implementation. S/T-interface - The reference point comprising the 4 wire interface between the network termination device (NT1) and the terminal equipment (TE1) or terminal adapter (TA).
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about.book Page 3 Friday, December 18, 1998 9:41 AM 3&6 3&6 3&6 5&/.$ 575$ 575% 575+8 5;'$ 5;'& 5;'+8 6&/. 6'$7$ 65'< 7&/.
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