RCV56HCF PCI/CardBus Modem Designer’s Guide
Table 3-1.  Bus Interface 176-Pin  TQFP Pin Signals
| Pin | Signal Label | I/O | I/O Type1 | Interface | Pin | Signal Label | I/O | I/O Type1 | Interface | 
| 1 | VDD | P | PWR | To 3.3V | 89 | AD7 | I/O | I/Opts | PCI Bus: AD7 | 
| 2 | RESERVED | I | It | To GND | 90 | AD6 | I/O | I/Opts | PCI Bus: AD6 | 
| 3 | RESERVED | I | It | To GND | 91 | AD5 | I/O | I/Opts | PCI Bus: AD5 | 
| 4 | GND | G | GND | Ground | 92 | AD4 | I/O | I/Opts | PCI Bus: AD4 | 
| 5 | VDD | P | PWR | To 3.3V | 93 | GND | G | GND | Ground | 
| 6 | RESERVED | O | Ot2 | NC | 94 | VDD | P | PWR | To 3.3V | 
| 7 | RESERVED | O | Ot2 | NC | 95 | AD3 | I/O | I/Opts | PCI Bus: AD3 | 
| 8 | RESERVED | O | Ot2 | NC | 96 | AD2 | I/O | I/Opts | PCI Bus: AD2 | 
| 9 | CARDBUS# | I | PWR | VCC through 10KΩ for PCI | 97 | AD1 | I/O | I/Opts | PCI Bus: AD1 | 
| 10 | SROMCS | O | Ot2 | SROM Chip Select | 98 | AD0 | I/O | I/Opts | PCI Bus: AD0 | 
| 11 | SROMOUT | O | Ot2 | SROM Data Out | 99 | GND | G | GND | Ground | 
| 12 | SROMIN | I | It | SROM Data In | 100 | SI_DD | I | It | MDP: SI Data Downstream | 
| 13 | SROMCLK | O | Ot2 | SROM Clock | 101 | SI_DU | O | Ot2 | MDP: SI Data Upstream | 
| 14 | RESERVED | O | Ot2 | NC | 102 | SI_CLK | I/O | It/Ot | MDP: SI Clock | 
| 15 | RESERVED | I | It | To GND | 103 | SI_FRAME | I/O | It/Ot | MDP: SI Frame | 
| 16 | ISDN_CS# | O | Ot2 | ISDN: CS# or NC | 104 | DRESET# | O | Ot2 | DB: DRESET# | 
| 17 | ISDN_INT# | I | It | ISDN: IRQ or to GND | 105 | M_TX | O | Ot2 | MDP: M_TX | 
| 18 | GND | G | GND | Ground | 106 | M_TXCLK | I | It | MDP: M_RXCLK | 
| 19 | NC | I | Itpd | NC | 107 | WKRES# | O | Ot12 | Wakeup Reset | 
| 20 | NC | I | It | NC | 108 | M_RXCLK | I | It | MDP: M_RXCLK | 
| 21 | NC | I | It | NC | 109 | GND | G | GND | Ground | 
| 22 | NC | O | Ot4ts | NC | 110 | VDD | P | PWR | To 3.3V | 
| 23 | NC | I | It | NC | 111 | DRD# | O | Ot2 | DB: DRD# | 
| 24 | INTA# | O | Opod | PCI Bus: INTA# | 112 | DWR# | O | Ot2 | DB: DWR# | 
| 25 | PCIRST# | I | Ip | PCI Bus: PCIRST# | 113 | MODEM_CS# | O | Ot2 | MDP: CS# | 
| 26 | VDD | P | PWR | To 3.3V | 114 | DA4 | O | Ot2 | DB: DA4 | 
| 27 | PCICLK | I | Ip | PCI Bus: PCICLK | 115 | DA3 | O | Ot2 | DB: DA3 | 
| 28 | GND | G | GND | Ground | 116 | DA2 | O | Ot2 | DB: DA2 | 
| 29 | GNT# | I | Ipts | PCI Bus: GNT# | 117 | DA1 | O | Ot2 | DB: DA1 | 
| 30 | REQ# | O | Opts | PCI Bus: REQ# | 118 | DA0 | O | Ot2 | DB: DA0 | 
| 31 | CLKRUN# | I | It | GND through 1K | 119 | VDD | P | PWR | To 3.3V | 
| 32 | AD31 | I/O | I/Opts | PCI Bus: AD31 | 120 | GND | G | GND | Ground | 
| 33 | GND | G | GND | Ground | 121 | DD7 | I/O | It/Ot2 | DB: DD7 | 
| 34 | AD30 | I/O | I/Opts | PCI Bus: AD30 | 122 | DD6 | I/O | It/Ot2 | DB: DD6 | 
| 35 | AD29 | I/O | I/Opts | PCI Bus: AD29 | 123 | DD5 | I/O | It/Ot2 | DB: DD5 | 
| 36 | AD28 | I/O | I/Opts | PCI Bus: AD28 | 124 | DD4 | I/O | It/Ot2 | DB: DD4 | 
| 37 | AD27 | I/O | I/Opts | PCI Bus: AD27 | 125 | DD3 | I/O | It/Ot2 | DB: DD3 | 
| 38 | VDD | P | PWR | To 3.3V | 126 | DD2 | I/O | It/Ot2 | DB: DD2 | 
| 39 | GND | G | GND | Ground | 127 | DD1 | I/O | It/Ot2 | DB: DD1 | 
| 40 | AD26 | I/O | I/Opts | PCI Bus: AD26 | 128 | DD0 | I/O | It/Ot2 | DB: DD0 | 
| 41 | AD25 | I/O | I/Opts | PCI Bus: AD25 | 129 | GND | G | GND | Ground | 
| 42 | AD24 | I/O | I/Opts | PCI Bus: AD24 | 130 | MODEM_CLK | O | Ot2 | MDP:XTLI | 
| 43 | CBE3# | I/O | I/Opts | PCI Bus: CBE3# | 131 | XOUT | O | Ot2 | Crystal Output | 
| 44 | VIO1 | P | PWR | To VIO | 132 | XIN | I | It | Crystal Input | 
| 45 | RESERVED | I | Itpd | NC | 133 | VDD | P | PWR | To 3.3V | 
| 46 | IDSEL | I | Ip | PCI Bus: IDSEL | 134 | VGG1 | P | PWR | To VDD or 3.3V | 
| 47 | VIO2 | P | PWR | To VIO | 135 | MODEM_IRQ | I | It | MDP: IRQ# | 
| 48 | GND | G | GND | Ground | 136 | M_RX | I | It | MDP: M_RX | 
| 49 | VDD | P | PWR | To 3.3V | 137 | MSWRESET | O | Ot2 | NC | 
| 50 | AD23 | I/O | I/Opts | PCI Bus: AD23 | 138 | RESERVED | O | Ot2 | NC | 
| 51 | AD22 | I/O | I/Opts | PCI Bus: AD22 | 139 | RESERVED | O | Ot | NC | 
| 52 | AD21 | I/O | I/Opts | PCI Bus: AD21 | 140 | RESERVED | I | It | To GND | 
| 53 | AD20 | I/O | I/Opts | PCI Bus: AD20 | 141 | RESERVED | I | It2 | To GND | 
| 54 | GND | G | GND | Ground | 142 | RESERVED | I | It | To GND | 
| 55 | VDD | P | PWR | To 3.3V | 143 | RESERVED | I | It | To GND | 
| 56 | AD19 | I/O | I/Opts | PCI Bus: AD19 | 144 | RESERVED | I | It2 | To GND | 
| 57 | AD18 | I/O | I/Opts | PCI Bus: AD18 | 145 | RESERVED | I | It | To GND | 
| 58 | AD17 | I/O | I/Opts | PCI Bus: AD17 | 146 | RESERVED | O | Ot2 | NC | 
| 59 | AD16 | I/O | I/Opts | PCI Bus: AD16 | 147 | RESERVED | O | Ot2 | NC | 
| 60 | GND | G | GND | Ground | 148 | RESERVED | O | Ot2 | NC | 
| 61 | CBE2# | I/O | I/Opts | PCI Bus: CBE2# | 149 | VDD | P | PWR | To 3.3V | 
| 62 | FRAME# | I/O | I/Opsts | PCI Bus: FRAME# | 150 | GND | G | GND | Ground | 
| 63 | IRDY# | I/O | I/Opsts | PCI Bus: IRDY# | 151 | RESERVED | I | Itpd | NC | 
| 64 | TRDY# | I/O | I/Opsts | PCI Bus: TRDY# | 152 | RESERVED | I/O | It/Ot12 | To 3.3V through 47K | 
| 1129 | ROCKWELL PROPRIETARY INFORMATION | 
