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μ
PD720231
2.4
System Clock and Reset
Pin Name
Pin No.
XT1
27
XT2
28
RESETB
38
2.5
USB Interface
Pin Name
Pin No.
U3RXP
23
U3RXN
22
U3TXP
20
U3TXN
19
U2DP
15
U2DM
13
2.6
Serial ATA Interface
Pin Name
Pin No.
SRXP
30
SRXN
31
STXP
34
STXN
33
R19UH0094EJ0100 Rev 1.00
Mar 1, 2013
Table 2-4. System Clock and Reset
Direction Buffer Type
I
OSC
O
OSC
I
3.3/2.5 V
schmitt
input
Ω
with 50 k
pull-up
resistor
Table 2-5. USB Interface
Direction Buffer Type
USB3
I
USB3
I
O
USB3
O
USB3
I/O
USB2
USB2
I/O
Table 2-6. Serial ATA Interface
Direction Buffer Type
SATA III
I
SATA III
I
O
SATA III
O
SATA III
Active
Level
−
30 MHz oscillator input.
Connect to a 30 MHz crystal.
−
30 MHz oscillator output.
Connect to a 30 MHz crystal.
Low
System reset
Active
Level
−
USB3.0 receive data D+ signal for SuperSpeed
−
USB3.0 receive data D− signal for SuperSpeed
−
USB3.0 transmit data D+ signal for SuperSpeed
−
USB3.0 transmit data D− signal for SuperSpeed
−
USB2.0 D+ signal for High-/Full-speed
−
USB2.0 D− signal for High-/Full-speed
Active
Level
−
Serial ATA receive data D+ signal
−
Serial ATA receive data D
−
Serial ATA transmit data D+ signal
−
Serial ATA transmit data D
2. Pin Function
Function
Function
Function
−
signal
−
signal
Page 6 of 30
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