Section 18 Universal Serial Bus Interface (USB)
Rev. 3.00 Jan 25, 2006 page 624 of 872
REJ09B0286-0300
External Event, Host
USB Function Core
Slave CPU
Core Interface
Initiate the USBID
interrupt processing
Complete the USBID
interrupt processing
Start system operation
Set UPLLCR
Cancel the module stop
state of the USB module
Set the VBUSS bit of
USBCR1 to 1
Check if the USB cable
is connected
Set the CK48READY bit
of USBCR1 to 1
Set the USB function
core to operate
Cancel the USB
function core reset
Check if a new device is
connected
Clear the FSRST bit of
USBCR0 to 0
Externally pull up
the USDP pin
Read USBIFR0 and
check if a BRSTF
interrupt occurs or not
Set the BRSTF bit of
USBIFR0 to 1
Request an USBID
interrupt (BRSTF)
Write EPINFO to EPDR0I
and set the EPIVLD bit of
USBCSR0 to 1
Clear the UIFRST bit of
USBCR0 to 0
Write to the USB function
core control registers
Clear the FPLLRST bit of
USBCR0 to 0
Wait for the DPLL
stabilization time
Wait for the PLL
stabilization time (3 ms)
Cancel reset (
RES
= 1)
Start USB operating
clock oscillation
Supply the USB
operating clock
Start DPLL operation
Set EPINFO
Receive a bus reset signal
Process a bus reset
Send a bus reset signal
Figure 18.14 Operation Procedure for Initializing USB Module
Содержание H8S/2158
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Страница 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Страница 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Страница 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Страница 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Страница 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Страница 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Страница 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Страница 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Страница 744: ...Section 20 Encryption Operation Circuit DES and GF Rev 3 00 Jan 25 2006 page 690 of 872 REJ09B0286 0300...
Страница 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Страница 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Страница 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Страница 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Страница 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Страница 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Страница 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...