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2.2 HDMI
EMA40i HDMI 1.4 transmitter with HDCP up to 1080p@60fps. The board enables HDMI/LCD audio
and video synchronization output.
The HDMI interface is the regular 19pins HDMI type A, with width 13.9mm and thickness 4.45mm.
Pin Signal
Description
Pin Signal
Description
1
HTX2P
HDMI Data Positive
2
GND
Ground
3
HTX2N
HDMI Data Negative
4
HTX1P
HDMI Data Positive
5
GND
Ground
6
HTX1N
HDMI Data Negative
7
HTX0P
HDMI Data Positive
8
GND
Ground
9
HTX0N
HDMI Data Negative
10
HTXCP
HDMI Clock Positive
11
GND
Ground
12
HTXCN
HDMI Clock Negative
13
CEC
Consumer electronics
control
14
NC
Not connect
15
HDMI_SCL HDMI serial clock
16
HDMI_SDA
HDMI serial data
17
GND
Ground
18
HDMI_VCC
HDMI Power Supply
19
HPD
Hot Plug Detect
2.3 USB Host
EMA40i supports 4 channal USB2.0 Host (2x Dual-USB, 1x 4pin connector multiplexing with one of
the 2x Dual-USB).
Compatible with Enhanced Host Controller Interface (EHCI) Specification (Version 1.0), and the
Open Host Controller Interface (OHCI) Specification (Version 1.0a).
P7
Pin Signal
Description
Pin Signal
Description
1
VDD_5V
5V power supply
2
USB_DM3
USB D- Signal
3
USB_DP3
USB D+ Signal
4
GND
Ground
1
19
