Ampro Corporation Single Board Computer 700 User Manual
Page 30
Chapter 3
Hardware
24
Reference Manual
ReadyBoard 700
Pin #
Signal
Input/
Output
Description
20 (A20)
GND
Digital Ground
21 (A21)
AD29
T/S
PCI Address and Data Bus Line 29 – Refer to Pin-3 for more
information.
22 (A22)
+5V
+5 volt power supply ±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
Digital Ground
25 (A25)
GNT1*
T/S
Grant 1 – This signal line is one of three signal lines. These signal
lines indicate access has been granted to the requesting device
(PCI Masters).
26 (A26)
+5V
+5 volt power supply ±5%
27 (A27)
CLK2
In
PCI clock 2 – This signal line is one of four signal lines. These
clock signals provide the timing outputs for four external PCI
devices and the timing for all transactions on the PCI bus
28 (A28)
GND
Digital Ground
29 (A29)
+12V
+12 volt power supply ±5%
30 (A30)
NC
Not connected - Reserved
31 (B1)
NC
Not connected - Reserved
32 (B2)
AD02
T/S
PCI Address and Data Bus Line 2 – Refer to Pin-3 for more
information.
33 (B3)
GND
Digital Ground
34 (B4)
AD07
T/S
PCI Address and Data Bus Line 7 – Refer to Pin-3 for more
information.
35 (B5)
AD09
T/S
PCI Address and Data Bus Line 9 – Refer to Pin-3 for more
information.
36 (B6)
VI/O
+5 volt power supply ±5%
37 (B7)
AD13
T/S
PCI Address and Data Bus Lines 13 – Refer to Pin-3 for more
information.
38 (B8)
C/BE1*
T/S
PCI Bus Command/Byte Enable 1 – Refer to Pin-4 for more
information.
39 (B9)
GND
Digital Ground
40 (B10)
PERR*
Parity Error – This signal is for reporting data parity errors.
41 (B11)
+3.3V
+3.3 volt power supply ±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
Digital Ground
44 (B14)
AD16
T/S
PCI Address and Data Bus Line 16 – Refer to Pin-3 for more
information.
45 (B15)
+3.3V
+3.3 volt power supply ±5%
46 (B16)
AD20
T/S
PCI Address and Data Bus Lines 20 – Refer to Pin-3 for more
information.