phyCORE-OMAP44xx
Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
L-760e_1 © PHYTEC Messtechnik GmbH 2012
113
The table below shows the auxiliary interfaces at display data connector X12.
Signal
Description
USB1DN
USB host interface derived from port 4 of the USB hub at U7. Suitable for optional
features e.g. front USB (refer to
for more information about the USB
host interfaces)
I2C4
I
2
C interface for a optional EEPROM, or other I
2
C devices (additional information on the
I
2
C interfaces can be found in
SPI1
SPI interface to connect optional SPI slave
1-WIRE
Hardware Introspection Interface
for internal use only
/PWR_KEY
Power on/off signal to allow for an ON/OFF switch on a front panel. It connects to the
PWRON input of the PMIC (X1C9 on the phyCORE-Connector) and to GPIO 181 (X1B13 on
the phyCORE-Connector) of the OMAP44xx
/DISP_ENA
Can be used to enable, or disable the display, or to shutdown the backlight. /DISP_ENA
is connected to GPIO 118 (X1B36 on the phyCORE-Connector) of the OMAP44xx
LS_BRIGHT
PWM output to control the brightness of a display's backlight (0% = dark,
100% = bright). This signal is connected to the phyCORE's X_DMTIMER9_PWM_EVT
output at X22A43 meaning that the PWM signal can be generated by general-purpose
timer GPT9 of the OMAP44xx
1
1.
Jumper J6 on the phyCORE-OMAP44xx must be configured at 1+2 to have this signal available (see
)
LS_ANA
Analog light sensor input.
The analog light sensor input at pin 40 extends to an 8-bit A/D converter (U42) which is
connected to the I
2
C bus I2C4 at address 0x64. To get the maximum adjustment range
the output voltage of an applicable light sensor should range from 0 V to V
Ref
(VCC_3V3AD).
Table 52:
Auxiliary Interfaces at PDI Data Connector X12
Содержание phyCORE-OMAP44 Series
Страница 10: ...phyCORE OMAP44xx PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 20: ...phyCORE OMAP44xx 8 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 22: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 10 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 46: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 34 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 70: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 58 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 84: ...Part I PCM 049 phyCORE OMAP44xx System on Module phyCORE OMAP44xx 72 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 92: ...Part II PCM 959 phyCORE OMAP44xx Carrier Board phyCORE OMAP44xx 80 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 166: ...Part II PCM 959 phyCORE OMAP44xx Carrier Board phyCORE OMAP44xx 154 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...
Страница 168: ...Revision History phyCORE OMAP44xx 172 PHYTEC Messtechnik GmbH 2012 L 760e_1 ...