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Chapter 3
Pin #
Signal
20 (A20)
GND
21 (A21)
AD29
22 (A22)
+5V
23 (A23)
REQ0*
24 (A24)
GND
25 (A25)
GNT1*
26 (A26)
+5V
27 (A27)
CLK2
28 (A28)
GND
29 (A29)
+12V
30 (A30)
NC
31 (B1)
NC
32 (B2)
AD02
33 (B3)
GND
34 (B4)
AD07
35 (B5)
AD09
36 (B6)
VI/O
37 (B7)
AD13
38 (B8)
C/BE1*
39 (B9)
GND
40 (B10)
PERR*
41 (B11)
+3.3V
42 (B12)
TRDY*
43 (B13)
GND
44 (B14)
AD16
45 (B15)
+3.3V
46 (B16)
AD20
26
Input/
Description
Output
Digital Ground
T/S
PCI Address and Data Bus Line 29 – Refer to Pin 3 for more
information.
+5 volts ±5% power supply
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.
Digital Ground
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).
+5 volts ±5% power supply
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
Digital Ground
+12 volts ±5% power supply
Not connected - Reserved
Not connected - Reserved
T/S
PCI Address and Data Bus Line 2 – Refer to Pin 3 for more
information.
Digital Ground
T/S
PCI Address and Data Bus Line 7 – Refer to Pin 3 for more
information.
T/S
PCI Address and Data Bus Line 9 – Refer to Pin 3 for more
information.
+5 volts ±5% power supply
T/S
PCI Address and Data Bus Lines 13 – Refer to Pin 3 for more
information.
T/S
PCI Bus Command/Byte Enable 1 – Refer to Pin 4 for more
information.
Digital Ground
Parity Error – This signal is for reporting data parity errors.
+3.3 volts ±5% power supply
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
Digital Ground
T/S
PCI Address and Data Bus Line 16 – Refer to Pin 3 for more
information.
+3.3 volts ±5% power supply
T/S
PCI Address and Data Bus Lines 20 – Refer to Pin 3 for more
information.
Reference Manual
Hardware
LittleBoard 700
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