Rev. 3.0, 10/02, page 531 of 686
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
Specify
to falling edge sensitive
(Set IRQ6E of IER to 1)
(Write IRQ6SCB and A of ISCRH to 01)
Clear IRQ6F of ISR to 0
Cancel USB module stop mode
(MSTPB0 of MSTPCR to 0)
Enter USB module stop state
(Stop MSTPB0 of MSTPCR to 1)
USB communication operations can be
restarted by using several USB registers
Clear SPRSi of UIFR3 to 0
Set SFME of UCTLR to 1
Enter software standby mode
(Execute SLEEP instruction)
= Low (falling edge output)
Set IRQ6F of ISR to 1
Set SPRSi and SPRSs of UIFR3 to 1
Clear IRQ6F of ISR to 0
Clear SPRSi of UIFR3 to 0
Clear SFME of UCTLR to 0
Detect USB bus suspend state
USPND pin = High
Procedure to enter software standby mode
Procedure to cancel software standby mode
Detect USB bus resume
USPND pin = Low
All USB module internal clocks stop
USB module intenal clock starts oscillation
Wait for USB operating clock stabiliation time
(Wait for CK48READY of UIFR3 is set to 1)
All LSI clocks stop
= High
= High
Cancel software standby mode
Wait for system clock stabilization time
(For external clock: 16 states min)
(For crystal oscillator clock: 8 ms min)
Enter active mode
(LSI internal clock starts oscillation)
= Low (falling edge output)
Set IRQ6F of ISR to 1
Set SPRSi of UIFR3 to 1
Clear SPRSs of UIFR3 to 0
Set CK48READY of UIFR3 to 1
(USB operating clock stabilized)
Detect SOF packet
Set SOF of UIFR3 to 1
: Indicates operations to be done
by firmware.
: Indicates operations to be
automatically done by hardware
in this LSI.
Figure 15.33 Transition to and from Software Standby Mode
Summary of Contents for H8S/2215 Series
Page 4: ...Rev 3 0 10 02 page iv of lviii ...
Page 6: ...Rev 3 0 10 02 page vi of lviii ...
Page 28: ...Rev 3 0 10 02 page xxviii of lviii ...
Page 122: ...Rev 3 0 10 02 page 64 of 686 ...
Page 132: ...Rev 3 0 10 02 page 74 of 686 ...
Page 156: ...Rev 3 0 10 02 page 98 of 686 ...
Page 198: ...Rev 3 0 10 02 page 140 of 686 ...
Page 320: ...Rev 3 0 10 02 page 262 of 686 ...
Page 384: ...Rev 3 0 10 02 page 326 of 686 ...
Page 474: ...Rev 3 0 10 02 page 416 of 686 ...
Page 608: ...Rev 3 0 10 02 page 550 of 686 ...
Page 614: ...Rev 3 0 10 02 page 556 of 686 ...
Page 650: ...Rev 3 0 10 02 page 592 of 686 ...
Page 652: ...Rev 3 0 10 02 page 594 of 686 ...
Page 680: ...Rev 3 0 10 02 page 622 of 686 ...
Page 732: ...Rev 3 0 10 02 page 674 of 686 ...
Page 740: ...Rev 3 0 10 02 page 682 of 686 ...