product brief march 1997 T7115A synchronous protocol data formatter features serial port interface n 32-channel (full-duplex), multiplexed, serial input/output hdlc processing n support for t1/ds1 24-channel and cept/e1 32-channel modes n automatic ?g transmission and detection n flag stuf?g up to 2,047 ?gs n flag adjustment for synchronous rate adaption n full, partial, or no crc generation and checking n zero-bit insertion and deletion n abort/idle detection and transmission n long-frame detection n 2 mbits/s continuous serial data rate n transparent mode (no protocol) supports ecma 102 and itu-t i.463 ra2 rate adaption standards n dynamic channel allocation (or channel concatenation) supports ds0, h0, h11, and h12 channels and other channel rates n bit-rate control on each channel n channel inversion n loopback mode n dma crc for relay mode microprocessor interface n compatibility with 16-bit or 32-bit microprocessor systems n on-chip, 64-channel, dma memory address gen- erator and buffer manager n interrupt queue (up to 4,096 interrupts) n nonmultiplexed 16-bit data and 24-bit address (8 mwords) buses n transmit and receive buffers accessible through memory-mapped look-up tables description 5-4457(c).a figure 1. simpli?d block diagram T7115A?c T7115A?l (spyder-t) td tclk tisyn rd rclk risyn address bus a[23:0] data bus d[15:0] rst int sa clk test dreq dack aval re we 24 16
product brief T7115A synchronous protocol data formatter march 1997 for additional information, contact your microelectronics group account manager or the following: internet: http://www.lucent.com/micro u.s.a.: microelectronics group, lucent technologies inc., 555 union boulevard, room 30l-15p-ba, allentown, pa 18103 1-800-372-2447 , fax 610-712-4106 (in canada: 1-800-553-2448 , fax 610-712-4106), e-mail docmaster@micro.lucent.com asia pacific: microelectronics group, lucent technologies singapore pte. ltd., 77 science park drive, #03-18 cintech iii, singapore 118256 tel. (65) 778 8833 , fax (65) 777 7495 japan: microelectronics group, lucent technologies japan ltd., 7-18, higashi-gotanda 2-chome, shinagawa-ku, tokyo 141, japan tel. (81) 3 5421 1600 , fax (81) 3 5421 1700 for data requests in europe: microelectronics group dataline: tel. (44) 1734 324 299 , fax (44) 1734 328 148 for technical inquiries in europe: central europe: (49) 89 95086 0 (munich), northern europe: (44) 1344 865 900 (bracknell uk), france: (33) 1 41 45 77 00 (paris), southern europe: (39) 2 6601 1800 (milan) or (34) 1 807 1700 (madrid) lucent technologies inc. reserves the right to make changes to the product(s) or information contained herein without notice. no liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. copyright ?1997 lucent technologies inc. all rights reserved printed in u.s.a. march 1997 pn97-061tic printed on recycled paper description (continued) the lucent technologies microelectronics group T7115A synchronous protocol data formatter (spyder-t) inte- grated circuit is an extremely ?xible 32-channel hdlc/dma controller. the device can be used in a variety of data and signaling applications to provide cost-effective ds1/e1 line termination or multiple d-channel termination. all inputs and outputs of the T7115A spyder-t are ttl compatible. the device is fabricated by using cmos tech- nology, requires a single 5 v supply, and is available in a 68-pin, plastic leaded chip carrier. pin information 5-2307(c) figure 2. pin diagram industry-standard numbering convention a7 a8 a9 a10 a11 td tisyn tclk v ss v dd rclk risyn rd a12 a13 a14 a15 d2 d3 d4 d5 v dd d6 d7 v ss v ss clk d8 d9 v dd d10 d11 d12 d13 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 d1 d0 v ss sa rst v dd a0 a1 a2 a3 v ss a4 a5 a6 dack dreq test a16 a17 a18 v ss a19 a20 a21 a22 a23 v dd v ss d15 d14 int aval re we T7115A?c T7115A?l
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