97
Sirius-PJ1Training
Slide 97
Multi Media (MM) Processing Unit
USB
IC9201
USB OTG
IC9602
USB3315
USB PHY
IC9604
uPD720114
USB HUB
IC9605
AIC1528
Hi-Side SW
X9601
24MHz
X9602
30MHz
X9201
24MHz
ULPI
D+/D-
D+/D-
To CPU
USB-A Port
Wireless LAN UNIT
VBUS
To REON
D+/D-
D+/D-
D+/D-
MCIMX515DJM8C
Multi Media CPU
ARM Coretex A8
800MHz
The Multi Media CPU (IC9201) and USB-PHY (IC9602) are connected with ULPI
(UTMI+Low Pin Interface), an interface standard between the USB controller
(logical layer circuit) and the transceiver (physical circuit).
The USB-PHY is operated with a 24MHz clock signal from a crystal controlled
oscillator (X9601). And the USB-HUB (IC9604) which is operated with a 30MHz
crystal oscillator (X9602) splits into 3 circuits of I/O: USB signals for the external
USB terminal, the wireless LAN unit terminal, and internal communication. The
USB signals conform to USB2.0 (High-Speed/Full-Speed/Low-Speed). However,
the signals for the internal communication operates in Full-Speed.
The VBUS (+5V) of the USB terminal is controlled by the overcurrent protection
circuit, Hi-Side SW (IC9605).
The wireless LAN function is enabled by connecting a dedicated LAN unit with a
USB-A terminal (exclusive use for wireless LAN) to achieve wireless
communication with the PC. By using dedicated software, it is possible not only
to control the projector, but also to display images from the PC to the projector.
