NXP Semiconductors LPC1768

UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013 99 of 841
NXP Semiconductors
UM10360
Chapter 7: LPC176x/5x Pin configuration
P0[28] / SCL0 /
USB_SCL
24 - I/O P0[28] — General purpose digital input/output pin. Open-drain 5 V tolerant
digital I/O pad, compatible with I
2
C-bus specifications for 100 kHz standard
mode, 400 kHz Fast Mode, and 1 MHz Fast Mode Plus. This pad requires
an external pull-up to provide output functionality. When power is switched
off, this pin connected to the I
2
C-bus is floating and does not disturb the
I
2
C lines. Open-drain configuration applies to all functions on this pin.
I/O
SCL0 — I
2
C0 clock input/output (this pin uses a specialized I2C pad, see
Section 19.1
for details).
I/O
USB_SCL — USB port I
2
C serial clock (OTG transceiver).
P0[29] / USB_D
 29 22 I/O P0[29] — General purpose digital input/output pin. Pad provides digital I/O
and USB functions. It is designed in accordance with the USB
specification, revision 2.0 (Full-speed and Low-speed mode only).
I/O
USB_D — USB bidirectional D+ line.
P0[30] / USB_D
 30 23 I/O P0[30] — General purpose digital input/output pin. Pad provides digital I/O
and USB functions. It is designed in accordance with the USB
specification, revision 2.0 (Full-speed and Low-speed mode only).
I/O
USB_D — USB bidirectional D line.
P1[0] to P1[31] I/O
Port 1: Port 1 is a 32-bit I/O port with individual direction controls for each
bit. The operation of port 1 pins depends upon the pin function selected via
the pin connect block. Pins 2, 3, 5, 6, 7, 11, 12, and 13 of this port are not
available.
P1[0] /
ENET_TXD0
95 76 I/O
P1[0] — General purpose digital input/output pin.
O
ENET_TXD0 — Ethernet transmit data 0.
P1[1] /
ENET_TXD1
94 75 I/O
P1[1] — General purpose digital input/output pin.
O
ENET_TXD1 — Ethernet transmit data 1.
P1[4] /
ENET_TX_EN
93 74 I/O
P1[4] — General purpose digital input/output pin.
O
ENET_TX_EN — Ethernet transmit data enable.
P1[8] /
ENET_CRS
92 73 I/O
P1[8] — General purpose digital input/output pin.
I
ENET_CRS — Ethernet carrier sense.
P1[9] /
ENET_RXD0
91 72 I/O
P1[9] — General purpose digital input/output pin.
I
ENET_RXD0 — Ethernet receive data.
P1[10] /
ENET_RXD1
90 71 I/O
P1[10] — General purpose digital input/output pin.
I
ENET_RXD1 — Ethernet receive data.
P1[14] /
ENET_RX_ER
89 70 I/O
P1[14] — General purpose digital input/output pin.
I
ENET_RX_ER — Ethernet receive error.
P1[15] /
ENET_REF_CLK
88 69 I/O
P1[15] — General purpose digital input/output pin.
I
ENET_REF_CLK — Ethernet reference clock.
P1[16] /
ENET_MDC
87 - I/O
P1[16] — General purpose digital input/output pin.
O
ENET_MDC — Ethernet MIIM clock.
P1[17] /
ENET_MDIO
86
- I/O P1[17] — General purpose digital input/output pin.
I/O
ENET_MDIO — Ethernet MIIM data input and output.
Table 73. Pin description …continued
Symbol LQFP
100
LQFP
80
Type Description