lpc1756 NXP Semiconductors, lpc1756 Datasheet - Page 11

• Manufacturer Part Number: lpc1756
• Description: 32-bit Arm Cortex-m3 Mcu Up To 512 Kb Flash And 64 Kb Sram With Ethernet, Usb 2.0 Host/device/otg, Can
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 3.
LPC1758_56_54_52_51_2
Objective data sheet
Symbol
P2[8]/TD2/
TXD2/ENET_MDC
P2[9]/
USB_CONNECT/
RXD2/
ENET_MDIO
P2[10]/EINT0/NMI
P4[0] to P4[31]
P4[28]/RX_MCLK/
MAT2[0]/TXD3
P4[29]/TX_MCLK/
MAT2[1]/RXD3
TDO/SWO
TDI
TMS/SWDIO
TRST
TCK/SWDCLK
RSTOUT
RESET
XTAL1
XTAL2
RTCX1
RTCX2
Pin description
Pin
50
49
41
65
68
1
2
3
4
5
11
14
19
20
13
15
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[5]
[1]
[1]
[6]
[7]
[7]
[7]
[7]
…continued
Type
I/O
O
O
O
I/O
O
I
I/0
I/O
I
I
I/O
I/O
I
O
O
I/O
I
O
I
O
O
I
I
I/O
I
I
I
O
I
I
O
I
O
Description
P2[8] — General purpose digital input/output pin.
TD2 — CAN2 transmitter output. (LPC1758/56 only).
TXD2 — Transmitter output for UART2.
ENET_MDC — Ethernet MIIM clock. (LPC1758 only).
P2[9] — General purpose digital input/output pin.
USB_CONNECT — Signal used to switch an external 1.5 k resistor under
software control. Used with the SoftConnect USB feature.
RXD2 — Receiver input for UART2.
ENET_MDIO — Ethernet MIIM data input and output. (LPC1758 only).
P2[10] — General purpose digital input/output pin.
Note: LOW on this pin while RESET is LOW forces on-chip bootloader to take
over control of the part after a reset.
EINT0 — External interrupt 0 input.
NMI — Non-maskable interrupt input.
Port 4: Port 4 is a 32-bit I/O port with individual direction controls for each bit. The
operation of port 4 pins depends upon the pin function selected via the pin connect
block. Some port pins are not available on the LQFP80 package.
P4[28] — General purpose digital input/output pin.
RX_MCLK — I
MAT2[0] — Match output for Timer 2, channel 0.
TXD3 — Transmitter output for UART3.
P4[29] — General purpose digital input/output pin.
TX_MCLK — I
MAT2[1] — Match output for Timer 2, channel 1.
RXD3 — Receiver input for UART3.
TDO — Test Data out for JTAG interface.
SWO — Serial wire trace output.
TDI — Test Data in for JTAG interface.
TMS — Test Mode Select for JTAG interface.
SWDIO — Serial wire debug data input/output.
TRST — Test Reset for JTAG interface.
TCK — Test Clock for JTAG interface.
SWDCLK — Serial wire clock.
RSTOUT — This is a 3.3 V pin. LOW on this pin indicates LPC1758/56/54/52/51
being in Reset state.
External reset input: A LOW on this pin resets the device, causing I/O ports and
peripherals to take on their default states, and processor execution to begin at
address 0. TTL with hysteresis, 5 V tolerant.
Input to the oscillator circuit and internal clock generator circuits.
Output from the oscillator amplifier.
Input to the RTC oscillator circuit.
Output from the RTC oscillator circuit.
Rev. 02 — 11 February 2009
2
2
S transmit master clock. (LPC1758/56 only).
S receive master clock. (LPC1758/56 only).
LPC1758/56/54/52/51
32-bit ARM Cortex-M3 microcontroller
© NXP B.V. 2009. All rights reserved.
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