Specifications
Chapter 3 Hardware
26 Reference Manual ReadyBoard 800
Pin # Signal Input/
Output
Description
21 (A21) AD29 T/S
PCI Address and Data Bus Line 29 – See Pin 3 for more
information.
22 (A22) +5V +5.0 volts ±5%
23 (A23) REQ0* T/S
Bus Request 0 – This signal line is one of three signal lines. These
signals indicate the device desires use of the bus to the arbitrator.
24 (A24) GND Ground
25 (A25) GNT1* T/S
Grant 1 – This signal line is one of three grant lines and these
indicate access has been granted to the requesting device (PCI
Masters).
26 (A26) +5V +5.0 volts ±5%
27 (A27) CLK2 In PCI clock 2 – This signal line is one of four clock signal lines and
these provide the timing outputs for four external PCI devices and
the timing for all transactions on the PCI bus
28 (A28) GND Ground
29 (A29) +12V +12.0 volts ±5%
30 (A30) NC Not connected - Reserved
31 (B1) SERIRQ Serial IRQ – This signal line provides the serial IRQs for the
MiniModule ISA expansion board if used. See Notes.
32 (B2) AD02 T/S PCI Address and Data Bus Line 2 – See Pin 3 for more information.
33 (B3) GND Ground
34 (B4) AD07 T/S PCI Address and Data Bus Line 7 – See Pin 3 for more information.
35 (B5) AD09 T/S PCI Address and Data Bus Line 9 – See Pin 3 for more information.
36 (B6) VI/O +5 volts – Reference voltage
37 (B7) AD13 T/S PCI Address and Data Bus Lines 13 – See Pin 3 for more
information.
38 (B8) C/BE1* T/S
PCI Bus Command/Byte Enable 1 – See Pin 4 for more
information.
39 (B9) GND Ground
40 (B10) PERR* Parity Error – This signal is for reporting data parity errors.
41 (B11) +3.3V +3.3 volts ±5%
42 (B12) TRDY* S/T/S
Target Ready – This signal indicates the selected device’s ability
to complete the current cycle of transaction. Both IRDY* and
TRDY* must be asserted to terminate a data cycle
43 (B13) GND Ground
44 (B14) AD16 T/S PCI Address and Data Bus Line 16 – See Pin 3 for more
information.
45 (B15) +3.3V +3.3 volts ±5%
46 (B16) AD20 T/S PCI Address and Data Bus Lines 20 – See Pin 3 for more
information.
47 (B17) AD23 T/S
PCI Address and Data Bus Line 23 – See Pin 3 for more
information.
48 (B18) GND Ground