Advanced
Information
©
PHYTEC Messtechnik GmbH 2014 L-792e_1
101
36 GND
- - Ground
37 GND
- - Ground
38
X_PWM1_OUT
OUT 3.3 V Pulse Width Modulation
39 VCC_BL
OUT NS
Backlight
power
supply
40
VCC5V
OUT 5.0 V 5 V power supply
Table 17:
Pin Assignment of PHYTEC A/V connector X70
Pin # Signal Name
Type
SL
Description
1
X_I2S_CLK
I/O
3.3 V I²S Clock
2
X_I2S_FRM
I/O
3.3 V I²S Frame
3 X_I2S_ADC
I/O
3.3
V
I²S Analog-Digital converter
(microphone)
4 X_I2S_DAC
I/O
3.3
V
I²S Digital-Analog converter
(speaker)
5
X_AV_INT_GPIO1_30
I/O
3.3 V A/V interrupt; GPIO1_30
6
nUSB0_OC_GPIO3_19 or
X_MCASP0_AHCLKX_GPIO3_21
I/O 3.3
V
GPIO3_19 or McASP0 high
frequency clock (see below)
7 GND
- -
Ground
8 nRESET_OUT
OUT
3.3
V Reset
9
TS_X+
IN
1.8 V Touch X+
10
TS_X-
IN
1.8 V Touch X-
11
TS_Y+
IN
1.8 V Touch Y+
12
TS_Y-
IN
1.8 V Touch Y-
13
VCC3V3
OUT 3.3 V 3.3 V power supply
14 GND
- - Ground
15
X_I2C0_SCL
I/O
3.3 V I²C Clock
16
X_I2C0_SDA
I/O
3.3 V I²C Data
Table 18:
Pin Assignment of PHYTEC A/V connector X71
Jumper J77 connects either signal X_MCASP0_AHCLKX_GPIO3_21 or signal
nUSB1_OC_GPIO3_19
to pin 6 of X71. The following table shows the available
configurations:
J77
Description
1+2 X_MCASP0_AHCLKX_GPIO3_21
2+3
nUSB1_OC_GPIO3_19
Table 19:
A/V Jumper Configuration J77
6
Voltage level is not specified and depends on the connected power module and the voltage attached.
