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TNETA1570 数据表(PDF) 8 Page - Texas Instruments |
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TNETA1570 数据表(HTML) 8 Page - Texas Instruments |
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8 / 68 page ![]() TNETA1570 ATM SEGMENTATION AND REASSEMBLY DEVICE WITH INTEGRATED 64BIT PCIHOST INTERFACE SDNS033B − JUNE 1995 − REVISED MAY 1996 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 miscellaneous signals TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION PHY/ATM 83 I (TTL) PHY/ATM mode select. PHY/ATM selects ATM mode when low and the PHY mode when high. ATM clock ATMCLK 82 O PHY mode In PHY mode, the ATMCLK is driven low. It can be left as a N/C. ATMCLK 82 O (CMOS) ATM mode ATMCLK is used as the clock source to provide for data transfers/synchronization. ATMCLK is connected to SEGCLK and RESCLK in the ATM mode. The clock generated by the interface is 33 MHz (nominal) using the PCI clock. NC 62 − 65, 99 − 100 No connection. Leave open. power and ground TERMINAL DESCRIPTION NAME NO. DESCRIPTION GND 8, 15, 24, 32, 40, 47, 56, 76, 88, 107, 117, 122, 128, 135, 140, 146, 151, 157, 163, 168, 174, 180, 186, 192, 198, 203, 210, 216, 223, 228, 234, 239 Ground VCC 6, 17, 28, 38, 49, 60, 68, 93, 115, 125, 132, 143, 153, 161, 170, 178, 188, 196, 205, 213, 221, 230 Supply voltage |
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