Table of Contents
Advertisement
Chapter 3
Pin #
Signal
60 (B30)
REQ3*
61 (C1)
+5V
62 (C2)
AD01
63 (C3)
AD04
64 (C4)
GND
65 (C5)
AD08
66 (C6)
AD10
67 (C7)
GND
68 (C8)
AD15
69 (C9)
NC
70 (C10)
+3.3V
71 (C11)
LOCK*
72 (C12)
GND
73 (C13)
IRDY*
74 (C14)
+3.3V
75 (C15)
AD17
76 (C16)
GND
77 (C17)
AD22
78 (C18)
IDSEL1
79 (C19)
VI/O
80 (C20)
AD25
81 (C21)
AD28
82 (C22)
GND
83 (C23)
REQ1*
84 (C24)
+5V
85 (C25)
GNT2*
86 (C26)
GND
87 (C27)
CLK3
88 (C28)
+5V
89 (C29)
INTB*
90 (C30)
GNT3*
91 (D1)
AD00
92 (D2)
+5V
93 (D3)
AD03
94 (D4)
AD06
95 (D5)
GND
96 (D6)
M66EN
LittleBoard 800
Input/
Description
Output
T/S
Bus Request 3 – Refer to pin-A23 for more information.
+5 volts ±5% power supply input
T/S
Address/Data Bus Line 1 – Refer to pin-A3 for more information.
T/S
Address/Data Bus Lines 4 – Refer to pin-A3 for more information.
Ground
T/S
Address/Data Bus Line 8 – Refer to pin-A3 for more information.
T/S
Address/Data Bus Line 10 – Refer to pin-A3 for more information.
Ground
T/S
Address/Data Bus Line 15 – Refer to pin-A3 for more information.
Not connected (Snoop Backoff)
+3.3 volts ±5% power supply input
S/T/S
Lock – This signal indicates an operation that may require multiple
transactions to complete
Ground
S/T/S
Initiator Ready – This signal indicates the master's ability to
complete the current data cycle of the transaction
+3.3 volts ±5% power supply input
T/S
Address/Data Bus Line 17 – Refer to pin-A3 for more information.
Ground
T/S
Address/Data Bus Line 22 – Refer to pin-A3 for more information.
Initialization Device Select 1 – Refer to pin-A18 for more information
+5 volts ±5% (Reference voltage only)
T/S
Address/Data Bus Line 25 – Refer to pin-A3 for more information.
T/S
Address/Data Bus Line 28 – Refer to pin-A3 for more information.
Ground
T/S
Bus Request 1 – Refer to pin-A23 for more information.
+5 volts ±5% power supply input
T/S
Grant 2 – Refer to pin-A25 for more information
Ground
In
Clock 3 – Refer to pin-A27 for more information
+5 volts ±5% power supply input
O/D
Interrupt B – This signal is used to request interrupts only for multi-
function devices.
T/S
Grant 3 – Refer to pin-A25 for more information
T/S
Address/Data Bus Line 0 – Refer to pin-A3 for more information.
+5 volts ±5% power supply input
T/S
Address/Data Bus Line 3 – Refer to pin-A3 for more information.
T/S
Address/Data Bus Line 6 – Refer to pin-A3 for more information.
Ground
Not supported – Reserved for 66MHz on PCI bus.
Reference Manual
Hardware
27
Advertisement
Table of Contents
