DF2211NP24V Renesas Technology / Hitachi Semiconductor, DF2211NP24V Datasheet - Page 586
DF2211NP24V
Manufacturer Part Number
DF2211NP24V
Description
H8S/2200 Series, 2212 Group, USB, RTC, HSS TNP-64B; Vcc= 2.7 to 3.6 volts, Temp= -20 to 75 C; Package: PVQN0064LB-A
Manufacturer
Renesas Technology / Hitachi Semiconductor
Datasheet
1.DF2211NP24V.pdf
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14.8.13 USB External Circuit Example
The USB external circuit examples are used for reference only. In actual board design, carefully
check the system operation.
In addition, the USB external circuit examples cannot guarantee the correct system operation. The
user must individually take measures against external surges or ESD noise by incorporating
protective diodes or other components if necessary.
Rev.7.00 Dec. 24, 2008 Page 532 of 698
REJ09B0074-0700
USB operating
clock (48MHz)
USB bus state
USPND
ISR/IRQ6F
UIFR3/SPRSi
UIFR3/SPRSs
UIFR3/SOF
USB module
stop
power-down mode
System clock
φ
USB internal
clock
UIFR3/
CK48READY
CLK48
IRQ6
(48MHz)
Normal Suspend
(1)
(2)
(3)
(3)
(3)
(3)
(6)
(5)
(4)
(4)
(4)
(8)
(7)
(7)
(7)
Figure 14.29 Timing Chart
(9)
(9)
USB module stop state
Power-down
mode
to stabilize
oscillator
wait for
(13)
(14)
(10)
(10)
4 ms
(12)
(11)
(11)
Resume → Normal
(16)
(14)
(18)
(18)
(17)
(15)
to stabilize
2 ms wait
operation
for USB
clock
(19)
(19)
(20)
(22)
(21)
SOF
(23)
(24)
USB operation
resumes
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