96
Sirius-PJ1Training
Slide 96
Multi Media (MM) Processing Unit
Multi Media CPU
IC9201
MCIMX515DJM8C
Multi Media CPU
ARM Coretex A8
800MHz
X9201
24MHz
IC9402
TC58DVG3S0ETA00
NAND Flash ROM
8Gb
IC9403
DDR2 SDRAM
1Gb
IC9401
DDR2 SDRAM
1Gb
IC9602
USB3315
USB PHY
X9601
24MHz
IC9603
LAN8710
LAN PHY
X9603
25MHz
USB OTG
USB
RGB
LAN
24bit
AUDIO
I2S
MII
ULPI
Data
Address
Data
Address
IC9604
uPD720114
USB HUB
X9602
30MHz
The Multi Media CPU (IC9201) operates with main CPU clock "800MHz" oin the PLL circuit
based on the 24MHz crystal oscillator (X’Tal). And with external IC connections, processing
including USB function, wired LAN, wireless LAN images, image file playback, video signal
output, and audio signal output are performed.
The Main OS is “WindowsCE6.0 R3”. The firmware is stored in the NAND Flash ROM (IC9402).
Also, the user settings in the MM board in relation to networks are stored in IC9402.
DDR2 SDRAM (IC9401, IC9403) operates with a 200MHz clock from the CPU, and the internal
processing speed is 400MHz.
The USB processing is connected with USB-PHY (IC9602) and ULPI. The signals are converted
to USB signals (D+, D-), then to 3rd-circuit USB signals in USB-HUB (IC9604). The 1st circuit is
used for the external USB terminal, 2nd circuit for the wireless LAN unit USB terminal, and 3rd
circuit for the internal communications. In addition, Hi-Side SW (IC9605) is used as the
overcurrent protection circuit for the VBUS of USB.
The LAN processing is input to RJ-45 terminal connected with LAN-PHY (IC9603) and MII
interface.
Also, the CPU outputs the 8 bit R/G/B video signals to the MAIN board with the POMM2
connector.
On CPU start-up, it is activated with a 32.768KHz clock signal output from PMIC (IC9008). And
after the firmware is activated, the external 24MHz crystal oscillator (X’tal: X9201) is activated.
The CPU is equipped with the following internal communication (communication among ICs or
boards) in addition to the external terminal control.
¾
1 circuit for internal I2C BUS communication.
¾
For communication with IC (IC9601) for RTC.
¾
1 circuit for UART for internal communication.
¾
For communication with MAIN board.
¾
1 circuit for USB OTG for internal communication.
¾
For communication with the CPU on the MAIN board (12Mbps).
