5.1.2 Connector Pins
Table 5.1 summarizes the pins of a 68-pin PC card interface connector (CN3).
Pin
Memory card
Signal name I/O
1
GND
2
D3
3
D4
4
D5
5
D6
6
D7
7
CE1#
8
A10
9
OE#
10
A11
11
A9
12
A8
13
A13
14
A14
15
WE#
16
READY
17
Vcc
18
VPP1
19
A16
20
A15
21
A12
22
A7
23
A6
24
A5
25
A4
26
A3
27
A2
28
A1
29
A0
30
D0
31
D1
32
D2
33
WP
34
GND
Table 5.1(1) PC Card Interface Connector Signal Pins
Function
-
Ground
I/O
Data bit 3
I/O
Data bit 4
I/O
Data bit 5
I/O
Data bit 6
I/O
Data bit 7
I
Card enable
I
Address bit 10
I
Output enable
I
Address bit 11
I
Address bit 9
I
Address bit 8
I
Address bit 13
I
Address bit 14
I
Write enable
O
Ready
-
Supply voltage
-
Programmed supply voltage VPP1
I
Address bit 16
I
Address bit 15
I
Address bit 12
I
Address bit 7
I
Address bit 6
I
Address bit 5
I
Address bit 4
I
Address bit 3
I
Address bit 2
I
Address bit 1
I
Address bit 0
I/O
Data bit 0
I/O
Data bit 1
I/O
Data bit 2
O
Write protect
-
Ground
I/O card
Signal name I/O
Function
GND
-
Ground
D3
I/O
Data bit 3
D4
I/O
Data bit 4
D5
I/O
Data bit 5
D6
I/O
Data bit 6
D7
I/O
Data bit 7
CE1#
I
Card enable
A10
I
Address bit 10
OE#
I
Output enable
A11
I
Address bit 11
A9
I
Address bit 9
A8
I
Address bit 8
A13
I
Address bit 13
A14
I
Address bit 14
WE#
I
Write enable
IREQ#
O
Interrupt request
Vcc
-
Supply voltage
-
Programmed supply voltage
A16
I
Address bit 16
A15
I
Address bit 15
A12
I
Address bit 12
A7
I
Address bit 7
A6
I
Address bit 6
A5
I
Address bit 5
A4
I
Address bit 4
A3
I
Address bit 3
A2
I
Address bit 2
A1
I
Address bit 1
A0
I
Address bit 0
D0
I/O
Data bit 0
D1
I/O
Data bit 1
D2
I/O
Data bit 2
IOIS16#
O
16-bit I/O port
GND
-
Ground
30