Psion Teklogix OMNii HDK XT10, Руководство пользователя

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Chapter 6: Omnii Expansion Ports and Connectors
Expansion Port Standard Interfaces
Psion Teklogix Omnii HDK User Manual 101
6.4.5.2 USB Interface
The expansion ports provide access to a USB (Universal Serial Bus) host connection.
Communication with USB client devices is supported at low speed (1.5 Mbps) and full speed
(12 Mbps).
USB devices are identified to the system by setting the
LoadFlags registry entry for the device to
4 (see Section 4.4.1: “Registry Settings for Expansion Devices”). When a USB device is detected
by the system, the USB driver is loaded on Omnii.
The following pins support USB communication on the expansion ports:
6.4.5.3 GPIO (General Purpose Input/Output) Interface
Eight data pins on each expansion interface can be used as GPIO (General Purpose Input/Output)
communication lines. These same pins are also used for serial and SPI communications; the
function of the pins is assigned by setting the
PinFunctions registry entry for the connected
device (see Section 4.4.1: “Registry Settings for Expansion Devices”).
Table 6.12 Expansion Port USB Pins
Pin Name
(n = Expansion Port #)
Description
Expansion Port
1 & 2 Pin
Expansion Port 3 Pin
EXP n _USB+ USB Host D+ 7 7
EXP n _USB+ USB Host D– 8 9
Table 6.13 Expansion Port GPIO Pins
Pin Name
( n =Expansion Port #)
Description
Expansion Port
1 & 2 Pin
Expansion Port 3 Pin
EXP n _TXD_GPIO0 GPIO pin 0 13 19
EXP n _RXD_GPIO1 GPIO pin 1 12 17
EXP n _CTS_GPIO2 GPIO pin 2 11 15
EXP n _RTS_GPIO3 GPIO pin 3 10 13
EXPn_MOSI_GPIO4 GPIO pin 4 17 27
EXPn_MISO_GPIO5 GPIO pin 5 16 25
EXPn_SCLK_GPIO6 GPIO pin 6 15 23
EXPn_CS_N_GPIO7 GPIO pin 7 14 21