Chapter 3
I/O Information
©
National Instruments Corporation
3-13
Table 3-10.
ExpressCard Connector Signals
Pin
Signal Name
Signal Description
1
GND
Ground
2
USBD–
USB Data –
3
USBD+
USB Data +
4
CPUSB#
USB Presence
5
RESERVED
Reserved by spec for future use
6
RESERVED
Reserved by spec for future use
7
SMBCLK
SMBus Clock
8
SMBDATA
SMBus Data
9
+1.5V
Power
10
+1.5V
Power
11
WAKE#
PE Wake
12
+3.3VAUX
Power
13
PERST#
PE Reset
14
+3.3V
Power
15
+3.3V
Power
16
CLKREQ#
Clock Request
17
CPPE#
PE Presence
18
REFCLK–
Reference Clock –
19
Reference Clock +
20
GND
Ground
21
PERn
PE Data Receive –
22
PERp
PE Data R
23
GND
Ground
24
PETn
PE Data Transmit –
25
PETp
PE Data Tr
26
GND
Ground