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M38K02FDFP Scheda tecnica(PDF) 45 Page - Renesas Technology Corp

Il numero della parte M38K02FDFP
Spiegazioni elettronici  RENESAS 8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  328 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38K02FDFP Scheda tecnica(HTML) 45 Page - Renesas Technology Corp

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FUNCTIONAL DESCRIPTION
Rev.2.00
Oct 05, 2006
page 28 of 112
38K0 Group
REJ09B0337-0200
HARDWARE
USB Port External Circuit Configuration
The operation mode of the USB port driver circuit can be config-
ured by USB control register (address 001016).
Figure 25 and Figure 26 show the USB port external circuit block
diagram.
“1”
“0”
USB Reference
Voltage Circuit
PLL
UCLKCON
VREFE
VREFCON
DVCC
Full
Speed
+
-
USBE
USBE
USB
Module
XOUT
fVCO
TRONCON
TRONE
USBVREF
TRON
D0+
D0-
2.2
µF
27
Ω
USBE
VREFCON
0
1
Hiz
Hiz
3.3V output
Normal mode
0
1
USBVREF status
fUSB
USBDIFE
Full
Speed
3.3V output
Low-power mode
0.1
µF
27
Ω
1.5 k
Ω
Fig. 25 USB port external circuit (D0+, D0-, USBVREF, TrON) block diagram (4.0V
≤≤≤≤≤ VCC ≤≤≤≤≤ 5.25V)
Fig. 26 USB port external circuit (D0+, D0-, USBVREF, TrON) block diagram (3.0V
≤≤≤≤≤ VCC ≤≤≤≤≤ 4.0V)
“1”
“0”
PLL
UCLKCON
Full
Speed
+
-
USBE
USBE
USB
Module
XOUT
fVCO
TRONCON
TRONE
USBVREF
TRON
D0+
D0-
27
Ω
USBE
fUSB
USBDIFE
Full
Speed
0.1
µF
27
Ω
1.5 k
Ω
3.0V to 3.6V (Note)
Note: In Vcc = 3.0 V to 3.6 V connect this pin to Vcc.



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