Specifications

WA_DEV_FEX20_PTS_004 Rev 001 June 30, 2010 19
Expansion Card Product Technical
Specification
Interfaces
4.1.1. Pin Description
Table 6: General Purpose Connector Pin Description
Pin Number
Signal Name
Voltage
I/O*
Reset State
Description
Dealing with Unused Pins
Nominal
Multiplexed with
1
GND
2
GND
3
Reserved
4
Reserved
5
Reserved
6
Reserved
7
NC
8
NC
9
NC
10
1.8V Digital supply from
the embedded module
1V8
O
1.8V Supply Output
NC
11
2.8V Digital supply from
the embedded module
2V8
O
2.8V Supply Output
NC
12
BOOT
1V8
I
Boot Input
NC
13
RESET
1V8
I/O
RESET Input
NC
14
AUX-ADC
Analog
I
Analog to Digital Input
NC or Pull to GND
15
SPI1-CS
GPIO31
2V8
O
Z
SPI1 Chip Select
NC
16
SPI1-CLK
GPIO28
2V8
O
Z
SPI1 Clock
NC
17
SPI1-I
GPIO30
2V8
I
Z
SPI1 Data Input
NC
18
SPI1-IO
GPIO29
2V8
I/O
Z
SPI1 Data Input / Output
NC
19
SPI2-CLK
GPIO32
2V8
O
Z
SPI2 Clock
NC
20
SPI2-IO
GPIO33
2V8
I/O
Z
SPI2 Data Input / Output
NC