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