Chapter 6: Omnii Expansion Ports and Connectors
Expansion Port 2 (Pod Expansion Connector)
96
Psion Teklogix Omnii HDK User Manual
6.4.3
Expansion Port 2 (Pod Expansion Connector)
Theory of Operation
The pod expansion connector is a standard expansion port that provides a means of connecting a
GPIO, USB, or serial device to the system, mounted in a pod expansion module attached to the
standard back cover. This connection is identified to the system as Expansion Port 2.
Pod Expansion Connector Details
Manufacturer:
HIROSE
Manufacturer Part Number:
FH12-22S-0.5SV(55)
Mating Connector:
Flex – 0.5 mm pitch
Number of Pins:
22
Current Rating:
0.4 A per pin
The Hirose pod connector is a zero-insertion-force, vertical-mounted connector.
Pinout
The 22-pin pod expansion connector provides access to expansion port 2, with the
following pinout:
Table 6.8 Pinout of 22-pin Pod Expansion Connector
Pin
Signal
Function
I/O Type Voltage
(V)
1
EXP2_3V3
Power. 100 mA current limited
Power
2,6,9,18,
20,21,22
GND
Ground
Ground
3,4,5
EXP2_VSYS
Power. Raw unregulated battery voltage
1000 mA current limited
Power
3.0-4.2
7
E
USB Host D+
I/O
8
EXP2_USB-
USB Host D-
I/O
10
EXP2_RTS_GPIO3
Serial RTS / GPIO pin 3
I/O
3.3
11
EXP2_CTS_GPIO2
Serial CTS / GPIO pin 2
I/O
3.3
12
EXP2_RXD_GPIO1
Serial RXD / GPIO pin 1
I/O
3.3
13
EXP2_TXD_GPIO0
Serial TXD / GPIO pin 0
I/O
3.3
14
EXP2_CS_N_GPIO7 SPI chip select / GPIO pin 7 (Modem DTR)
I/O
3.3
15
EXP2_SCLK_GPIO6 SPI SCLK / GPIO pin 6 (Modem DSR)
I/O
3.3
16
EXP2_MISO_GPIO5 SPI MISO / GPIO pin 5 (Modem DCD)
I/O
3.3
17
EXP2_MOSI_GPIO4 SPI MOSI / GPIO pin 4 (Modem RI)
I/O
3.3
19
EXP2_1WIRE
Connection for 1-Wire EEPROM
I/O
3.3
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