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43
NS9750 Pinout
I
2
C interface
USB interface
Notes:
If not using the USB interface, these pins should be pulled down to ground
through a 15K ohm resistor.
All output drivers for USB meet the standard USB driver specification.
JTAG interface for ARM core/boundary scan
Note:
trst_n must be pulsed low to initialize JTAG when a debugger is not
attached. See Figure 9, "JTAG interface," on page 44.
Bits Signal name U/D
OD
(mA) I/O Description
AC15 iic_scl 4 I/O I
2
C serial clock line. Add a 10K resistor to
VDDA(3.3V) if not used.
AF16 iic_sda 4 I/O I
2
C serial data line. Add a 10K resistor to
VDDA(3.3V) if not used.
Table 12: I
2
C interface pinout
Bits Signal name U/D
OD
(mA)
I/O Description
AB4 usb_dm I/O USB data -
AC3 usb_dp I/O USB data +
Table 13: USB interface pinout
Bits Signal name U/D
OD
(mA) I/O Description
AE20 tck I Test clock
AD18 tdi U I Test data in
Table 14: JTAG interface/boundary scan pinout