Specifications

Chapter 3 Hardware
28 Reference Manual ReadyBoard 800
Pin # Signal Input/
Output
Description
77 (C17) AD22 T/S
PCI Address and Data Bus Line 22 – See Pin-3 for more
information.
78 (C18) IDSEL1 Initialization Device Select 1 – See Pin-18 for more information
79 (C19) VI/O Reference Voltage – +5 volts
80 (C20) AD25 T/S PCI Address and Data Bus Line 25 – See Pin-3 for more
information.
81 (C21) AD28 T/S
PCI Address and Data Bus Line 28 – See Pin-3 for more
information.
82 (C22) GND Ground
83 (C23) REQ1* T/S Bus Request 1 – See Pin-23 for more information.
84 (C24) +5V +5.0 volts ±5%
85 (C25) GNT2* T/S
Grant 2 – See Pin-25 for more information. This signal line is
reserved for the MiniModule ISA expansion board. See Notes.
86 (C26) GND Ground
87 (C27) CLK3 In PCI clock 3 – See Pin-27 for more information
88 (C28) +5V +5.0 volts ±5%
89 (C29) INTB* O/D Interrupt B – This signal is only used to request interrupts for
multi-function devices.
90 (C30) GNT3*
91 (D1) AD00 T/S PCI Address and Data Bus Line 0 – See Pin-3 for more
information.
92 (D2) +5V +5.0 volts ±5%
93 (D3) AD03 T/S
PCI Address and Data Bus Lines 3 – See Pin-3 for more
information.
94 (D4) AD06 T/S PCI Address and Data Bus Lines 6 – See Pin-3 for more
information.
95 (D5) GND Ground
96 (D6) NC Not Connected (M66EN)
97 (D7) AD12 T/S PCI Address and Data Bus Line 12 – See Pin-3 for more
information.
98 (D8) +3.3V +3.3 volts ±5%
99 (D9) PAR T/S PCI bus Parity bit – This signal is the even parity bit on AD[31:0]
and C/BE[3:0]*.
100 (D10) SDONE Snoop Done – Tied to +5v through 10k ohm resistor
101 (D11) GND Ground
102 (D12) DEVSEL* S/T/S Device Select – This signal is driven by the target device when its
address is decoded.
103 (D13) +3.3V +3.3 volts ±5%
104 (D14) C/BE2* PCI Bus Command/Byte Enable 2 – See Pin-4 for more
information.
105 (D15) GND Ground