Phytec phyCORE-OMAP44 Series, Руководство по оборудованию

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phyCORE-OMAP44xx Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
L-760e_1 © PHYTEC Messtechnik GmbH 2012 111
selects normal operation (see Table 41 for details).
At the time of delivery jumper JP13 is open, consequently data from the parallel display interface is available at
PDI data connector X12.
In addition other useful interfaces such as USB, I
2
C, etc. are available at PDI data connector X12. Table 52 lists
all miscellaneous signals and gives detailed explanations.
The following table shows the pin-out of the PDI's display data connectors at X12.
Pin # Signal I/O SL Description
1 SPI1_CLK_3V3 O 3.3 V SPI 1 clock
2 SPI1_MISO_3V3 I/O 3.3 V SPI 1 master data in;
slave data out
3 SPI1_MOSI_3V3 O/I 3.3 V SPI 1 master data out;
slave data in
4 SPI1_CS2_3V3 O 3.3 V SPI 1 chip select display
adapter
5 DISP_IRQ I 3.3 V SPI interrupt input
(connected to GPIO 64 of
the OMAP44xx (X1D34 on
the phyCORE-Connector))
6 VCC_3V3 O 3.3 V Logic supply voltage
1
7 I2C4_SCL_3V3 I/O 3.3 V I
2
C clock signal
8 I2C4_SDA_3V3 I/O 3.3 V I
2
C data signal
9 GND - - Ground
10 LS_BRIGHT O 3.3 V PWM brightness control
11 VCC_3V3 O 3.3 V Logic supply voltage1
12 /PWR_KEY I 3.3 V Power on/off signal
13 /DISP_ENA O 3.3 V Display enable signal
14 X_1-WIRE_3V3 I/O 3.3 V Hardware Introspection
Interface
for internal use only
15 GND - - Ground
16 USB1DN_DP4 I/O 3.3 V USB data + (port 4 of the
USB hub at U7)
2
17 USB1DN_DM4 I/O 3.3 V USB data - (port 4 of the
USB hub at U7)2
18 GND - - Ground
19 DISP_LVDS_0- O 3.3 V LVDS data channel 0
negative output
Table 51: PDI Display Data Connector X12 Signal Description