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VT83C572 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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VT83C572 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 9 page VIA Technologies, Inc. VT83C572 -4- VT83C572 PIN DESCRIPTION Signal Name Pin No. I/O Signal Description PCI Bus Interface AD[31:0] 98-100, 1-5, 9- 14, 17-19, 31, 32, 34-36, 38, 39, 41, 42, 44- 47, 49, 50 B PCI Address/Data Bus: The standard PCI address and data lines. The address is driven with FRAME# assertion and data is driven or received in following cycles. CBE#[3:0] 7, 20, 33, 40 B Command/Byte Enable.. IDSEL 8 I Initialization Device Select. FRAME# 21 B PCI Bus Frame Indicator. IRDY# 22 B Initiator Ready Indicator. TRDY# 23 B Target Ready. DEVSEL# 24 B Device Select. STOP# 26 B Stop Indicator. PAR 30 B Parity. PERR# 27 B PCI Bus Parity Error. SERR# 28 I System Error. LOCK# 29 B PCI Bus Lock. REQ# 97 O PCI bus request to the bus arbiter. GNT# 96 I PCI bus grant from the bus arbiter. INTA # 95 I PCI Interrupt Request. PCLK 93 I PCI Bus Clock. PCIRST# 92 O PCI Reset: An active low reset signal for the PCI bus. Universal Serial Bus Interface SD0+ 88 B USB Port 0 Data SD0- 89 B USB Port 0 Data SD1+ 84 B USB Port 1 Data SD1- 85 B USB Port 1 Data X1 71 I USB Clock input, connected to 48Mhz oscillator or crystal input. X2 70 O USB 48Mhz crystal connection. Leave unconnected if oscillator is used. CPU Interface SMI# 51 O System Management Interrupt to the processor for legacy keyboard and mouse support. Power and Ground VDD 6, 16, 43, 54, 63, 73, 82, 90, 94 I Power Supply of 4.5 to 5.5V. VSS 15, 25, 37, 48, 55, 69, 72, 83, 91 I Ground VDDA 87 I USB Differential Output Power Source VSSA 86 I USB Differential Output Ground |
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