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10
10
1-5. Checking of USB storage media
USB
memory
controller
(IC801)
USB
storage
media
USBH_DP
USBH_DN
Function : USB MEMORY
System
controller
(IC401)
DISPLAY
“ACCESS”
When HCD-AZ7DM changes the function to USB MEMORY, HCD-AZ7DM
starts to check the existence of USB storage media logically.
starts to check the existence of USB storage media logically.
USB memory controller outputs signals from USBH_DP(IC801 53pin) and
USBH_DN terminals (IC801 54pin) to communicate with USB storage media.
At this time, the condition is detected by System controller (IC401) and
“ACCESS” is shown on the display.
“ACCESS” is shown on the display.
If USB memory controller (IC801) success to communicates with an USB
storage media logically, USB memory controller try to find audio source in USB
storage media. (1-6)
storage media. (1-6)
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